"Sat, 14 Sep 2024 04:15:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240914
Only TIME
04:15:45
General datetime
2024-09-14 04:15:45Z
For Database
2024-09-14 04:15:45
For HTTP1.1
Sat, 14 Sep 2024 04:15:45 GMT