"Sun, 15 Sep 2024 00:20:35"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
00:20:35
General datetime
2024-09-15 00:20:35Z
For Database
2024-09-15 00:20:35
For HTTP1.1
Sun, 15 Sep 2024 00:20:35 GMT