diff --git a/code/__DEFINES/mobs.dm b/code/__DEFINES/mobs.dm
index a5259ab2255..2b8293a7610 100644
--- a/code/__DEFINES/mobs.dm
+++ b/code/__DEFINES/mobs.dm
@@ -440,7 +440,8 @@
 //MINOR TWEAKS/MISC
 //#define AGE_MIN 17	//youngest a character can be //ORIGINAL
 #define AGE_MIN	18	//youngest a character can be //SKYRAT EDIT CHANGE - age
-#define AGE_MAX 85 //oldest a character can be
+#define AGE_MAX 100 //oldest a character can be //SKYRAT EDIT CHANGE - Increase max character age to 100 - ORIGINAL: #define AGE_MAX 85 //oldest a character can be
+#define AGE_CHRONO_MAX 9999 //SKYRAT EDIT ADDITION - Chronological age
 #define AGE_MINOR 20 //legal age of space drinking and smoking
 #define WIZARD_AGE_MIN 30 //youngest a wizard can be
 #define APPRENTICE_AGE_MIN 29 //youngest an apprentice can be
diff --git a/code/datums/records/manifest.dm b/code/datums/records/manifest.dm
index f1f81b521f8..ddb92ea7629 100644
--- a/code/datums/records/manifest.dm
+++ b/code/datums/records/manifest.dm
@@ -123,6 +123,7 @@ GLOBAL_DATUM_INIT(manifest, /datum/manifest, new)
 
 	var/datum/record/locked/lockfile = new(
 		age = person.age,
+		chrono_age = person.chrono_age, // SKYRAT EDIT ADDITION - Chronological age
 		blood_type = record_dna.blood_type,
 		character_appearance = character_appearance,
 		dna_string = record_dna.unique_enzymes,
@@ -140,6 +141,7 @@ GLOBAL_DATUM_INIT(manifest, /datum/manifest, new)
 
 	new /datum/record/crew(
 		age = person.age,
+		chrono_age = person.chrono_age, // SKYRAT EDIT ADDITION - Chronological age
 		blood_type = record_dna.blood_type,
 		character_appearance = character_appearance,
 		dna_string = record_dna.unique_enzymes,
diff --git a/code/datums/records/record.dm b/code/datums/records/record.dm
index cf10e62bdcd..7c1e6be5568 100644
--- a/code/datums/records/record.dm
+++ b/code/datums/records/record.dm
@@ -29,6 +29,7 @@
 
 /datum/record/New(
 	age = 18,
+	chrono_age = 18, // SKYRAT EDIT ADDITION - Chronological age
 	blood_type = "?",
 	character_appearance,
 	dna_string = "Unknown",
@@ -42,6 +43,7 @@
 	voice = "?????",
 )
 	src.age = age
+	src.chrono_age = chrono_age // SKYRAT EDIT ADDITION - Chronological age
 	src.blood_type = blood_type
 	src.character_appearance = character_appearance
 	src.dna_string = dna_string
@@ -89,6 +91,7 @@
 
 /datum/record/crew/New(
 	age = 18,
+	chrono_age = 18, // SKYRAT EDIT ADDITION - Chronological age
 	blood_type = "?",
 	character_appearance,
 	dna_string = "Unknown",
@@ -153,6 +156,7 @@
 
 /datum/record/locked/New(
 	age = 18,
+	chrono_age = 18, // SKYRAT EDIT ADDITION - Chronological age
 	blood_type = "?",
 	character_appearance,
 	dna_string = "Unknown",
@@ -264,6 +268,7 @@
 	var/final_paper_text = "<center><b>SR-[print_count]: [header]</b></center><br>"
 
 	final_paper_text += "Name: [name]<br>Gender: [gender]<br>Age: [age]<br>"
+	final_paper_text += "Chronological Age: [chrono_age]<br>" // SKYRAT EDIT ADDITION - Chronological age
 	if(alias != name)
 		final_paper_text += "Alias: [alias]<br>"
 
diff --git a/code/game/machinery/computer/records/medical.dm b/code/game/machinery/computer/records/medical.dm
index 6fcef6726e4..2043e129da3 100644
--- a/code/game/machinery/computer/records/medical.dm
+++ b/code/game/machinery/computer/records/medical.dm
@@ -52,6 +52,7 @@
 
 		records += list(list(
 			age = target.age,
+			chrono_age = target.chrono_age, // SKYRAT EDIT ADDITION - Chronological age
 			blood_type = target.blood_type,
 			crew_ref = REF(target),
 			dna = target.dna_string,
@@ -80,6 +81,7 @@
 	var/list/data = list()
 	data["min_age"] = AGE_MIN
 	data["max_age"] = AGE_MAX
+	data["max_chrono_age"] = AGE_CHRONO_MAX // SKYRAT EDIT ADDITION - Chronological age
 	data["physical_statuses"] = PHYSICAL_STATUSES
 	data["mental_statuses"] = MENTAL_STATUSES
 	return data
@@ -145,6 +147,7 @@
 		return FALSE
 
 	target.age = 18
+	target.chrono_age = 18 // SKYRAT EDIT ADDITION - Chronological age
 	target.blood_type = pick(list("A+", "A-", "B+", "B-", "O+", "O-", "AB+", "AB-"))
 	target.dna_string = "Unknown"
 	target.gender = "Unknown"
diff --git a/code/game/machinery/computer/records/security.dm b/code/game/machinery/computer/records/security.dm
index 350e54db126..86ea1a61318 100644
--- a/code/game/machinery/computer/records/security.dm
+++ b/code/game/machinery/computer/records/security.dm
@@ -117,6 +117,7 @@
 
 		records += list(list(
 			age = target.age,
+			chrono_age = target.chrono_age, // SKYRAT EDIT ADDITION - Chronological age
 			citations = citations,
 			crew_ref = REF(target),
 			crimes = crimes,
@@ -142,6 +143,7 @@
 	var/list/data = list()
 	data["min_age"] = AGE_MIN
 	data["max_age"] = AGE_MAX
+	data["max_chrono_age"] = AGE_CHRONO_MAX // SKYRAT EDIT ADDITION - Chronological age
 	return data
 
 /obj/machinery/computer/records/security/ui_act(action, list/params, datum/tgui/ui)
diff --git a/code/modules/mob/living/carbon/human/human_defines.dm b/code/modules/mob/living/carbon/human/human_defines.dm
index 52fe6d7b684..9c57c8776d1 100644
--- a/code/modules/mob/living/carbon/human/human_defines.dm
+++ b/code/modules/mob/living/carbon/human/human_defines.dm
@@ -44,6 +44,7 @@
 	var/lip_color = COLOR_WHITE
 
 	var/age = 30 //Player's age
+	var/chrono_age = 30 // SKYRAT EDIT ADDITION - Chronological age
 
 	/// Which body type to use
 	var/physique = MALE
diff --git a/code/modules/modular_computers/file_system/programs/records.dm b/code/modules/modular_computers/file_system/programs/records.dm
index 063c19d35e1..3effdbd5b80 100644
--- a/code/modules/modular_computers/file_system/programs/records.dm
+++ b/code/modules/modular_computers/file_system/programs/records.dm
@@ -39,6 +39,7 @@
 				var/list/current_record = list()
 
 				current_record["age"] = person.age
+				current_record["chrono_age"] = person.chrono_age // SKYRAT EDIT ADDITION - Chronological age
 				current_record["fingerprint"] = person.fingerprint
 				current_record["gender"] = person.gender
 				current_record["name"] = person.name
@@ -52,6 +53,8 @@
 			for(var/datum/record/crew/person in GLOB.manifest.general)
 				var/list/current_record = list()
 
+				current_record["age"] = person.age // SKYRAT EDIT ADDITION - Chronological age
+				current_record["chrono_age"] = person.chrono_age // SKYRAT EDIT ADDITION - Chronological age
 				current_record["bloodtype"] = person.blood_type
 				current_record["ma_dis"] = person.major_disabilities_desc
 				current_record["mi_dis"] = person.minor_disabilities_desc
diff --git a/modular_skyrat/master_files/code/datums/records/record.dm b/modular_skyrat/master_files/code/datums/records/record.dm
index 2b4897d86a5..4b42585df8c 100644
--- a/modular_skyrat/master_files/code/datums/records/record.dm
+++ b/modular_skyrat/master_files/code/datums/records/record.dm
@@ -1,3 +1,7 @@
+/datum/record
+	/// Chronological age of the character.
+	var/chrono_age
+
 /datum/record/crew
 	/// Contains their background information.
 	var/background_information
diff --git a/modular_skyrat/master_files/code/modules/client/preferences/chronological_age.dm b/modular_skyrat/master_files/code/modules/client/preferences/chronological_age.dm
new file mode 100644
index 00000000000..fa017c0cac7
--- /dev/null
+++ b/modular_skyrat/master_files/code/modules/client/preferences/chronological_age.dm
@@ -0,0 +1,14 @@
+// Chronological age
+/datum/preference/numeric/chronological_age
+	category = PREFERENCE_CATEGORY_NON_CONTEXTUAL
+	savefile_key = "chrono_age"
+	savefile_identifier = PREFERENCE_CHARACTER
+
+	minimum = AGE_MIN
+	maximum = AGE_CHRONO_MAX
+
+/datum/preference/numeric/chronological_age/create_informed_default_value(datum/preferences/preferences)
+	return preferences.read_preference(/datum/preference/numeric/age)
+
+/datum/preference/numeric/chronological_age/apply_to_human(mob/living/carbon/human/target, value)
+	target.chrono_age = value
diff --git a/modular_skyrat/master_files/code/modules/client/preferences_savefile.dm b/modular_skyrat/master_files/code/modules/client/preferences_savefile.dm
index 791bfcd39bd..d2cb359c89f 100644
--- a/modular_skyrat/master_files/code/modules/client/preferences_savefile.dm
+++ b/modular_skyrat/master_files/code/modules/client/preferences_savefile.dm
@@ -3,7 +3,7 @@
  * You can't really use the non-modular version, least you eventually want asinine merge
  * conflicts and/or potentially disastrous issues to arise, so here's your own.
  */
-#define MODULAR_SAVEFILE_VERSION_MAX 4
+#define MODULAR_SAVEFILE_VERSION_MAX 5
 
 #define MODULAR_SAVEFILE_UP_TO_DATE -1
 
@@ -11,6 +11,7 @@
 #define VERSION_BREAST_SIZE_CHANGE 2
 #define VERSION_SYNTH_REFACTOR 3
 #define VERSION_UNDERSHIRT_BRA_SPLIT 4
+#define VERSION_CHRONOLOGICAL_AGE 5
 
 #define INDEX_UNDERWEAR 1
 #define INDEX_BRA 2
@@ -254,6 +255,9 @@
 			write_preference(GLOB.preference_entries[/datum/preference/color/bra_color], migrated_color)
 			write_preference(GLOB.preference_entries[/datum/preference/choiced/undershirt], "Nude")
 
+	// Resets Chronological Age field to default.
+	if(current_version < VERSION_CHRONOLOGICAL_AGE)
+		write_preference(GLOB.preference_entries[/datum/preference/numeric/chronological_age], read_preference(/datum/preference/numeric/age))
 
 /datum/preferences/proc/check_migration()
 	if(!tgui_prefs_migration)
diff --git a/tgstation.dme b/tgstation.dme
index a9117593687..c3d28d6ba83 100644
--- a/tgstation.dme
+++ b/tgstation.dme
@@ -6488,6 +6488,7 @@
 #include "modular_skyrat\master_files\code\modules\client\preferences\be_antag.dm"
 #include "modular_skyrat\master_files\code\modules\client\preferences\body_size.dm"
 #include "modular_skyrat\master_files\code\modules\client\preferences\brain.dm"
+#include "modular_skyrat\master_files\code\modules\client\preferences\chronological_age.dm"
 #include "modular_skyrat\master_files\code\modules\client\preferences\clothing.dm"
 #include "modular_skyrat\master_files\code\modules\client\preferences\delete_sparks.dm"
 #include "modular_skyrat\master_files\code\modules\client\preferences\emote_overlay.dm"
diff --git a/tgui/packages/tgui/interfaces/MedicalRecords/RecordView.tsx b/tgui/packages/tgui/interfaces/MedicalRecords/RecordView.tsx
index 3e75d1eb332..181e2cff6ee 100644
--- a/tgui/packages/tgui/interfaces/MedicalRecords/RecordView.tsx
+++ b/tgui/packages/tgui/interfaces/MedicalRecords/RecordView.tsx
@@ -31,10 +31,12 @@ export const MedicalRecordView = (props) => {
   const { act, data } = useBackend<MedicalRecordData>();
   const { assigned_view, physical_statuses, mental_statuses, station_z } = data;
 
-  const { min_age, max_age } = data;
+  // const { min_age, max_age } = data; // ORIGINAL
+  const { min_age, max_age, max_chrono_age } = data; // SKYRAT EDIT CHANGE - Chronological age
 
   const {
     age,
+    chrono_age, // SKYRAT EDIT ADDITION - Chronological age
     blood_type,
     crew_ref,
     dna,
@@ -91,7 +93,10 @@ export const MedicalRecordView = (props) => {
             <LabeledList.Item label="Job">
               <EditableText field="job" target_ref={crew_ref} text={rank} />
             </LabeledList.Item>
-            <LabeledList.Item label="Age">
+            {/* <LabeledList.Item label="Age"> // ORIGINAL */}
+            {/* SKYRAT EDIT CHANGE BEGIN - Chronological age */}
+            <LabeledList.Item label="Physical Age">
+              {/* SKYRAT EDIT CHANGE END */}
               <RestrictedInput
                 minValue={min_age}
                 maxValue={max_age}
@@ -105,6 +110,22 @@ export const MedicalRecordView = (props) => {
                 value={age}
               />
             </LabeledList.Item>
+            {/* SKYRAT EDIT ADDITION BEGIN - Chronological age */}
+            <LabeledList.Item label="Chronological Age">
+              <RestrictedInput
+                minValue={min_age}
+                maxValue={max_chrono_age}
+                onEnter={(event, value) =>
+                  act('edit_field', {
+                    field: 'chrono_age',
+                    ref: crew_ref,
+                    value: value,
+                  })
+                }
+                value={chrono_age}
+              />
+            </LabeledList.Item>
+            {/* SKYRAT EDIT ADDITION END */}
             <LabeledList.Item label="Species">
               <EditableText
                 field="species"
diff --git a/tgui/packages/tgui/interfaces/MedicalRecords/types.ts b/tgui/packages/tgui/interfaces/MedicalRecords/types.ts
index 5fad33cd213..93e90bc3648 100644
--- a/tgui/packages/tgui/interfaces/MedicalRecords/types.ts
+++ b/tgui/packages/tgui/interfaces/MedicalRecords/types.ts
@@ -9,10 +9,12 @@ export type MedicalRecordData = {
   records: MedicalRecord[];
   min_age: number;
   max_age: number;
+  max_chrono_age: number; // SKYRAT EDIT ADDITION - Chronological age
 };
 
 export type MedicalRecord = {
   age: number;
+  chrono_age: number; // SKYRAT EDIT ADDITION - Chronological age
   blood_type: string;
   crew_ref: string;
   dna: string;
diff --git a/tgui/packages/tgui/interfaces/NtosRecords.jsx b/tgui/packages/tgui/interfaces/NtosRecords.jsx
index 58f4e7f53b7..78c9c97960c 100644
--- a/tgui/packages/tgui/interfaces/NtosRecords.jsx
+++ b/tgui/packages/tgui/interfaces/NtosRecords.jsx
@@ -45,6 +45,10 @@ export const NtosRecords = (props) => {
                       ' ' +
                       record.age +
                       ' ' +
+                      /* SKYRAT EDIT ADDITION BEGIN - Chronological age */
+                      record.chrono_age +
+                      ' ' +
+                      /* SKYRAT EDIT ADDITION END */
                       record.fingerprint,
                   )
                 )
@@ -61,8 +65,14 @@ export const NtosRecords = (props) => {
               <br />
               Gender: {record.gender}
               <br />
-              Age: {record.age}
+              {/* SKYRAT EDIT CHANGE - Chronological age, ORIGINAL: Age: {record.age} */}
+              Physical Age: {record.age}
+              {/* SKYRAT EDIT CHANGE END */}
               <br />
+              {/* SKYRAT EDIT ADDITION BEGIN - Chronological age */}
+              Chronological Age: {record.chrono_age}
+              <br />
+              {/* SKYRAT EDIT ADDITION END */}
               Fingerprint Hash: {record.fingerprint}
               <br />
               <br />
@@ -93,6 +103,12 @@ export const NtosRecords = (props) => {
                 {record.name}
               </Box>
               <br />
+              {/* SKYRAT EDIT ADDITION BEGIN - Chronological age */}
+              Physical Age: {record.age}
+              <br />
+              Chronological Age: {record.chrono_age}
+              <br />
+              {/* SKYRAT EDIT ADDITION END */}
               Bloodtype: {record.bloodtype}
               <br />
               Minor Disabilities: {record.mi_dis}
diff --git a/tgui/packages/tgui/interfaces/PreferencesMenu/preferences/features/character_preferences/age.tsx b/tgui/packages/tgui/interfaces/PreferencesMenu/preferences/features/character_preferences/age.tsx
index 3b0dc68158f..109f5edfa76 100644
--- a/tgui/packages/tgui/interfaces/PreferencesMenu/preferences/features/character_preferences/age.tsx
+++ b/tgui/packages/tgui/interfaces/PreferencesMenu/preferences/features/character_preferences/age.tsx
@@ -1,6 +1,13 @@
 import { Feature, FeatureNumberInput } from '../base';
 
 export const age: Feature<number> = {
-  name: 'Age',
+  // name: 'Age', // ORIGINAL
+  name: 'Age (Physical)', // SKYRAT EDIT CHANGE - Chronological age
+  // SKYRAT EDIT ADDITION BEGIN - Chronological age
+  description:
+    "Physical age represents how far your character has grown physically and mentally.\
+    Includes 'normal' aging, such as experiences which physically age the body, and 'anti-aging' medical procedures.\
+    Does not include time spent in cryo-sleep.",
+  // SKYRAT EDIT ADDITION END
   component: FeatureNumberInput,
 };
diff --git a/tgui/packages/tgui/interfaces/PreferencesMenu/preferences/features/character_preferences/skyrat/chronological_age.tsx b/tgui/packages/tgui/interfaces/PreferencesMenu/preferences/features/character_preferences/skyrat/chronological_age.tsx
new file mode 100644
index 00000000000..f63bb351380
--- /dev/null
+++ b/tgui/packages/tgui/interfaces/PreferencesMenu/preferences/features/character_preferences/skyrat/chronological_age.tsx
@@ -0,0 +1,10 @@
+// THIS IS A SKYRAT SECTOR UI FILE
+import { Feature, FeatureNumberInput } from '../../base';
+
+export const chrono_age: Feature<number> = {
+  name: 'Age (Chronological)',
+  description:
+    'Chronological age represents how long your character has actually existed in the universe since birth.\
+    Includes time spent in cryo-sleep and/or in areas of gravity/speed-induced time dilation.',
+  component: FeatureNumberInput,
+};
diff --git a/tgui/packages/tgui/interfaces/SecurityRecords/RecordView.tsx b/tgui/packages/tgui/interfaces/SecurityRecords/RecordView.tsx
index 43a38182b45..dcf9d664996 100644
--- a/tgui/packages/tgui/interfaces/SecurityRecords/RecordView.tsx
+++ b/tgui/packages/tgui/interfaces/SecurityRecords/RecordView.tsx
@@ -53,10 +53,12 @@ const RecordInfo = (props) => {
   const { available_statuses } = data;
   const [open, setOpen] = useLocalState<boolean>('printOpen', false);
 
-  const { min_age, max_age } = data;
+  // const { min_age, max_age } = data; // ORIGINAL
+  const { min_age, max_age, max_chrono_age } = data; // SKYRAT EDIT CHANGE - Chronological age
 
   const {
     age,
+    chrono_age, // SKYRAT EDIT ADDITION - Chronological age
     crew_ref,
     crimes,
     fingerprint,
@@ -150,7 +152,10 @@ const RecordInfo = (props) => {
             <LabeledList.Item label="Job">
               <EditableText field="rank" target_ref={crew_ref} text={rank} />
             </LabeledList.Item>
-            <LabeledList.Item label="Age">
+            {/* <LabeledList.Item label="Age"> // ORIGINAL */}
+            {/* SKYRAT EDIT CHANGE BEGIN - Chronological age */}
+            <LabeledList.Item label="Physical Age">
+              {/* SKYRAT EDIT CHANGE END */}
               <RestrictedInput
                 minValue={min_age}
                 maxValue={max_age}
@@ -164,6 +169,22 @@ const RecordInfo = (props) => {
                 value={age}
               />
             </LabeledList.Item>
+            {/* SKYRAT EDIT ADDITION BEGIN - Chronological age */}
+            <LabeledList.Item label="Chronological Age">
+              <RestrictedInput
+                minValue={min_age}
+                maxValue={max_chrono_age}
+                onEnter={(event, value) =>
+                  act('edit_field', {
+                    crew_ref: crew_ref,
+                    field: 'chrono_age',
+                    value: value,
+                  })
+                }
+                value={chrono_age}
+              />
+            </LabeledList.Item>
+            {/* SKYRAT EDIT ADDITION END */}
             <LabeledList.Item label="Species">
               <EditableText
                 field="species"
diff --git a/tgui/packages/tgui/interfaces/SecurityRecords/types.ts b/tgui/packages/tgui/interfaces/SecurityRecords/types.ts
index 861abb2a65f..ded95918c90 100644
--- a/tgui/packages/tgui/interfaces/SecurityRecords/types.ts
+++ b/tgui/packages/tgui/interfaces/SecurityRecords/types.ts
@@ -9,10 +9,12 @@ export type SecurityRecordsData = {
   records: SecurityRecord[];
   min_age: number;
   max_age: number;
+  max_chrono_age: number; // SKYRAT EDIT ADDITION - Chronological age
 };
 
 export type SecurityRecord = {
   age: number;
+  chrono_age: number; // SKYRAT EDIT ADDITION - Chronological age
   citations: Crime[];
   crew_ref: string;
   crimes: Crime[];