"Sat, 21 Dec 2024 04:30:34"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241221
Only TIME
04:30:34
General datetime
2024-12-21 04:30:34Z
For Database
2024-12-21 04:30:34
For HTTP1.1
Sat, 21 Dec 2024 04:30:34 GMT