"Sat, 29 Jun 2024 15:33:47"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240629
Only TIME
15:33:47
General datetime
2024-06-29 15:33:47Z
For Database
2024-06-29 15:33:47
For HTTP1.1
Sat, 29 Jun 2024 15:33:47 GMT