"Sun, 19 Jan 2025 11:18:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250119
Only TIME
11:18:21
General datetime
2025-01-19 11:18:21Z
For Database
2025-01-19 11:18:21
For HTTP1.1
Sun, 19 Jan 2025 11:18:21 GMT