"Sat, 11 May 2024 09:40:17"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240511
Only TIME
09:40:17
General datetime
2024-05-11 09:40:17Z
For Database
2024-05-11 09:40:17
For HTTP1.1
Sat, 11 May 2024 09:40:17 GMT