"Sat, 29 Jun 2024 16:49:39"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240629
Only TIME
16:49:39
General datetime
2024-06-29 16:49:39Z
For Database
2024-06-29 16:49:39
For HTTP1.1
Sat, 29 Jun 2024 16:49:39 GMT