I emailed Cipsoft and they assured me they can tell me my characters age I had them double verify it by asking twice. This is the only way at the moment.
Jan 10 2020, 11:43:17 CETRe: [Ticket#422870457958] Liviuh - Character AgeHello,
Thank you for your request.
The information my colleague provided you is correct. The character Liviuh was indeed created on January 11, 2019.
This means you have created this character on the same date.
If you have further questions, please let me know.
Tibia Customer Support
I went through all the fansites and they couldn't help me with your character's age and not account age. The only way to know is by submitting a ticket to CIPSOFT on tibia.com
Here's my previous research:
This fansite is outdated won't show one of my characters appears to be inactive.
This fansite doesn't show any character details besides experience in past week or year but didn't load for one of my characters.
This fansite says I died by a wyrm on 1/1/1970. Outdated. However shows some deaths.
This fansite shows you minimal information about deaths not showing me my character in particular.
I feel like if you go the Tibia client -> Character -> Achievements You can go based off of those dates roughly to estimate or check letters in your depot or market history.
Ohmy a good way to see how long you've been offline training would be to do some sort of calculator. I prefer the Tibiastats calculator.