"Sun, 15 Sep 2024 13:15:49"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
13:15:49
General datetime
2024-09-15 13:15:49Z
For Database
2024-09-15 13:15:49
For HTTP1.1
Sun, 15 Sep 2024 13:15:49 GMT