"Fri, 21 Jun 2024 15:34:41"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240621
Only TIME
15:34:41
General datetime
2024-06-21 15:34:41Z
For Database
2024-06-21 15:34:41
For HTTP1.1
Fri, 21 Jun 2024 15:34:41 GMT