"Sat, 29 Jun 2024 15:23:06"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240629
Only TIME
15:23:06
General datetime
2024-06-29 15:23:06Z
For Database
2024-06-29 15:23:06
For HTTP1.1
Sat, 29 Jun 2024 15:23:06 GMT