I've been experiencing some issues with calculating ages accurately on my website. The age displayed seems to be off by one year in some cases check https://yashesaplama.com.tr/. I've double-checked the date inputs and the logic used for calculation, but the problem persists.

Has anyone else encountered a similar issue? Could it be a problem with the leap year calculation or the way I'm handling date formats? Any insights or suggestions on how to fix this would be greatly appreciated!