"Sun, 15 Sep 2024 02:21:44"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
02:21:44
General datetime
2024-09-15 02:21:44Z
For Database
2024-09-15 02:21:44
For HTTP1.1
Sun, 15 Sep 2024 02:21:44 GMT