"Sun, 30 Jun 2024 20:38:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240630
Only TIME
20:38:20
General datetime
2024-06-30 20:38:20Z
For Database
2024-06-30 20:38:20
For HTTP1.1
Sun, 30 Jun 2024 20:38:20 GMT