"Sat, 21 Dec 2024 01:47:04"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241221
Only TIME
01:47:04
General datetime
2024-12-21 01:47:04Z
For Database
2024-12-21 01:47:04
For HTTP1.1
Sat, 21 Dec 2024 01:47:04 GMT