"Sun, 15 Sep 2024 18:37:34"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
18:37:34
General datetime
2024-09-15 18:37:34Z
For Database
2024-09-15 18:37:34
For HTTP1.1
Sun, 15 Sep 2024 18:37:34 GMT