"Sun, 15 Sep 2024 18:20:06"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
18:20:06
General datetime
2024-09-15 18:20:06Z
For Database
2024-09-15 18:20:06
For HTTP1.1
Sun, 15 Sep 2024 18:20:06 GMT