"Sun, 17 Mar 2024 20:16:04"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240317
Only TIME
20:16:04
General datetime
2024-03-17 20:16:04Z
For Database
2024-03-17 20:16:04
For HTTP1.1
Sun, 17 Mar 2024 20:16:04 GMT