"Sat, 25 May 2024 14:59:03"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240525
Only TIME
14:59:03
General datetime
2024-05-25 14:59:03Z
For Database
2024-05-25 14:59:03
For HTTP1.1
Sat, 25 May 2024 14:59:03 GMT