"Sat, 21 Dec 2024 06:31:54"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241221
Only TIME
06:31:54
General datetime
2024-12-21 06:31:54Z
For Database
2024-12-21 06:31:54
For HTTP1.1
Sat, 21 Dec 2024 06:31:54 GMT