"Sat, 21 Dec 2024 03:37:10"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241221
Only TIME
03:37:10
General datetime
2024-12-21 03:37:10Z
For Database
2024-12-21 03:37:10
For HTTP1.1
Sat, 21 Dec 2024 03:37:10 GMT