Activity based on Time Frame targeting does not work correctly.
Steps to replicate:
Create an activity that runs only on Wednesday and Sunday.
Include the time frame as:
The activity runs as expected. This activity runs at sharp 00:00 of every Wednesday and Sunday.
Due to this setup, the activity runs only on Wednesday and Sunday.
The lag of around 15-20 minutes occurs when the activity runs.
The time which needs to be input in the Time Frame audience is GMT +5 time.
If you need the activity to be delivered from Friday 00:00 to Friday 23:59, then you can configure the time as Thursday 23:30 to Friday: 23:30.