"Mon, 16 Sep 2024 06:20:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240916
Only TIME
06:20:21
General datetime
2024-09-16 06:20:21Z
For Database
2024-09-16 06:20:21
For HTTP1.1
Mon, 16 Sep 2024 06:20:21 GMT