"Sun, 19 May 2024 14:59:02"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240519
Only TIME
14:59:02
General datetime
2024-05-19 14:59:02Z
For Database
2024-05-19 14:59:02
For HTTP1.1
Sun, 19 May 2024 14:59:02 GMT