"Sat, 21 Dec 2024 04:49:32"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241221
Only TIME
04:49:32
General datetime
2024-12-21 04:49:32Z
For Database
2024-12-21 04:49:32
For HTTP1.1
Sat, 21 Dec 2024 04:49:32 GMT