"Sun, 15 Sep 2024 15:34:59"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
15:34:59
General datetime
2024-09-15 15:34:59Z
For Database
2024-09-15 15:34:59
For HTTP1.1
Sun, 15 Sep 2024 15:34:59 GMT