Time/Year Tracking on Character Sheets?

So, I'm playing a game that's not supported here with a created character sheet (as far as I know), so we keep our character information on the "Bio&Info" section of the character sheet. My question is this. Is there a way (some script or something) to automatically have the "Bio&Info" page update the year and ages of characters? Almost like a reverse countdown clock? We keep track of the game and characters in real time, and I was wondering if there was a way things would automatically update every new year, instead of me going back in every time and changing or updating (600+ characters') information every time a year passes.

This could be done, though I wouldn't want to do it myself, and it would need a custom script, which itself would need the creator of the game to be a Pro subscriber. You can't do this with a normal macro. It occurs to me that if you have the Pro subscription necessary to make this happen, you could make a custom character sheet that just has the date/time trackin section. No matter what detail you want, this would be simpler than creating a script and you would only need to sign up for pro subscription for 1 month - a script-based solution would require a pro subscription for as long as you play the game.

To automatically update the Bio & Info tab, I’m fairly sure you’ll need a custom Mod (API) script (requires the game creator to have a Roll20 Pro subscription)   However, I think you should be able to link a Character Age attribute to a separate ‘Date’ character attribute to have each character automatically update their age.  So if a character named ‘Bob’ is born in 1940, and you create a Date character with an attribute called ‘CurrentYear’, then on Bob create an attribute called ‘BirthYear’ with ‘1940’ in the field and another attribute called ‘Age’ with this formula: [[@{Date|CurrentYear} - @{BirthYear}]] 

Jarren said: To automatically update the Bio & Info tab, I’m fairly sure you’ll need a custom Mod (API) script (requires the game creator to have a Roll20 Pro subscription)   However, I think you should be able to link a Character Age attribute to a separate ‘Date’ character attribute to have each character automatically update their age.  So if a character named ‘Bob’ is born in 1940, and you create a Date character with an attribute called ‘CurrentYear’, then on Bob create an attribute called ‘BirthYear’ with ‘1940’ in the field and another attribute called ‘Age’ with this formula: [[@{Date|CurrentYear} - @{BirthYear}]]  That's pretty much what I'm looking to do. Something similar. Thanks for the help!