edit text manually:
If you were born on January 1, 2000.
$(floor(#D200001010000Td#/365.242))$ years $(floor(#D200001010000Td#%365.242))$ days old
floor removes decimals. Date is encoded #Dyear.month.day.hour.min.Td#, so year 2000 month 01 day 01 hour00 min 00.