If you ever need to reset your Google account password, you may be asked for the month and year that you started your account. We suggest that you make a note of this date and save it with you Google account password.
To find the date, click on the gear icon below your profile picture
Go to Settings
Then Forwarding and POP/IMAP
Under POP Download, look for Status. You’ll see: POP is enabled for all mail that has arrived since
This will be followed by the date you created your Gmail account.