example for time format

Author: NervN

guide/CodeReferences/ref.time_format.md

@@ -24,4 +24,13 @@ like [$timeToDate](../Date/timeToDate.md)
 | s | seconds like 20 |
 | 0s | seconds but with padding zero like 03 |
 | ampm | PM / AM |
-| tz | Timezone used like UTC |
+| tz | Timezone used like UTC |
+
+### Example
+```php
+$timeToDate[$timestamp;%y%-%m%-%d%]
+```
+Result:
+```
+2025-8-15
+```