"Sun, 15 Sep 2024 18:26:06"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240915
Only TIME
18:26:06
General datetime
2024-09-15 18:26:06Z
For Database
2024-09-15 18:26:06
For HTTP1.1
Sun, 15 Sep 2024 18:26:06 GMT