"Mon, 03 Jun 2024 12:54:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240603
Only TIME
12:54:21
General datetime
2024-06-03 12:54:21Z
For Database
2024-06-03 12:54:21
For HTTP1.1
Mon, 03 Jun 2024 12:54:21 GMT