"Sun, 26 May 2024 14:10:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240526
Only TIME
14:10:21
General datetime
2024-05-26 14:10:21Z
For Database
2024-05-26 14:10:21
For HTTP1.1
Sun, 26 May 2024 14:10:21 GMT