If you want to keep a tag armed (so to log open/close in event history) but only get notification when it is opened after hours, you can enable this applet which will use Pushover to send you important notification (you can even configure Pushover to repeat the notification).

This Trigger fires when a specified motion sensor tag(s) or reed sensor(s) detect that a door or window is open.

This Action will generate a Pushover notification to your subscribed devices

Send door open notification only after hours (before 7AM and after 8PM)