"Sat, 22 Jun 2024 15:54:34"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240622
Only TIME
15:54:34
General datetime
2024-06-22 15:54:34Z
For Database
2024-06-22 15:54:34
For HTTP1.1
Sat, 22 Jun 2024 15:54:34 GMT