"Sun, 15 Sep 2024 23:47:26"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
23:47:26
General datetime
2024-09-15 23:47:26Z
For Database
2024-09-15 23:47:26
For HTTP1.1
Sun, 15 Sep 2024 23:47:26 GMT