"Sat, 14 Sep 2024 12:15:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240914
Only TIME
12:15:20
General datetime
2024-09-14 12:15:20Z
For Database
2024-09-14 12:15:20
For HTTP1.1
Sat, 14 Sep 2024 12:15:20 GMT