"Sat, 29 Jun 2024 16:39:48"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240629
Only TIME
16:39:48
General datetime
2024-06-29 16:39:48Z
For Database
2024-06-29 16:39:48
For HTTP1.1
Sat, 29 Jun 2024 16:39:48 GMT