"Sun, 29 Sep 2024 23:15:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240929
Only TIME
23:15:21
General datetime
2024-09-29 23:15:21Z
For Database
2024-09-29 23:15:21
For HTTP1.1
Sun, 29 Sep 2024 23:15:21 GMT