"Thu, 27 Jun 2024 18:15:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240627
Only TIME
18:15:15
General datetime
2024-06-27 18:15:15Z
For Database
2024-06-27 18:15:15
For HTTP1.1
Thu, 27 Jun 2024 18:15:15 GMT