"Mon, 03 Jun 2024 19:17:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240603
Only TIME
19:17:21
General datetime
2024-06-03 19:17:21Z
For Database
2024-06-03 19:17:21
For HTTP1.1
Mon, 03 Jun 2024 19:17:21 GMT