Can't you get the current date and time with FlashAir's Lua function?

Nice to meet you!
I'm using FlashAir as a trial.
I downloaded the file from the server using ftp in Lua, but the file date and time are not registered.
Of course, FlashAir doesn't have a clock and there's no way to get the current time, is there?

If the external network connection is unable to get the current date and time on the Internet.

Thank you for your cooperation.