"Sun, 26 May 2024 14:38:11"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240526
Only TIME
14:38:11
General datetime
2024-05-26 14:38:11Z
For Database
2024-05-26 14:38:11
For HTTP1.1
Sun, 26 May 2024 14:38:11 GMT