"Sat, 22 Jun 2024 12:36:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240622
Only TIME
12:36:15
General datetime
2024-06-22 12:36:15Z
For Database
2024-06-22 12:36:15
For HTTP1.1
Sat, 22 Jun 2024 12:36:15 GMT