"Sat, 29 Jun 2024 21:29:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240629
Only TIME
21:29:45
General datetime
2024-06-29 21:29:45Z
For Database
2024-06-29 21:29:45
For HTTP1.1
Sat, 29 Jun 2024 21:29:45 GMT