"Sat, 21 Dec 2024 01:39:16"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241221
Only TIME
01:39:16
General datetime
2024-12-21 01:39:16Z
For Database
2024-12-21 01:39:16
For HTTP1.1
Sat, 21 Dec 2024 01:39:16 GMT