"Sun, 16 Jun 2024 12:38:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240616
Only TIME
12:38:18
General datetime
2024-06-16 12:38:18Z
For Database
2024-06-16 12:38:18
For HTTP1.1
Sun, 16 Jun 2024 12:38:18 GMT