"Sun, 15 Sep 2024 19:13:16"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
19:13:16
General datetime
2024-09-15 19:13:16Z
For Database
2024-09-15 19:13:16
For HTTP1.1
Sun, 15 Sep 2024 19:13:16 GMT