"Sun, 15 Sep 2024 12:48:59"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
12:48:59
General datetime
2024-09-15 12:48:59Z
For Database
2024-09-15 12:48:59
For HTTP1.1
Sun, 15 Sep 2024 12:48:59 GMT