"Fri, 20 Dec 2024 07:38:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241220
Only TIME
07:38:21
General datetime
2024-12-20 07:38:21Z
For Database
2024-12-20 07:38:21
For HTTP1.1
Fri, 20 Dec 2024 07:38:21 GMT