"Thu, 26 Jun 2025 14:45:03"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250626
Only TIME
14:45:03
General datetime
2025-06-26 14:45:03Z
For Database
2025-06-26 14:45:03
For HTTP1.1
Thu, 26 Jun 2025 14:45:03 GMT