"Sat, 22 Jun 2024 18:34:40"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240622
Only TIME
18:34:40
General datetime
2024-06-22 18:34:40Z
For Database
2024-06-22 18:34:40
For HTTP1.1
Sat, 22 Jun 2024 18:34:40 GMT