"Sat, 18 May 2024 22:17:08"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240518
Only TIME
22:17:08
General datetime
2024-05-18 22:17:08Z
For Database
2024-05-18 22:17:08
For HTTP1.1
Sat, 18 May 2024 22:17:08 GMT