"Mon, 09 Sep 2024 15:42:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240909
Only TIME
15:42:21
General datetime
2024-09-09 15:42:21Z
For Database
2024-09-09 15:42:21
For HTTP1.1
Mon, 09 Sep 2024 15:42:21 GMT