"Sat, 29 Jun 2024 18:50:03"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240629
Only TIME
18:50:03
General datetime
2024-06-29 18:50:03Z
For Database
2024-06-29 18:50:03
For HTTP1.1
Sat, 29 Jun 2024 18:50:03 GMT