"Thu, 20 Jun 2024 15:09:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240620
Only TIME
15:09:21
General datetime
2024-06-20 15:09:21Z
For Database
2024-06-20 15:09:21
For HTTP1.1
Thu, 20 Jun 2024 15:09:21 GMT