Your son was left with a family member for the evening while you and your wife went out. He’s meant to go to bed at 9:00, but he’s still awake when you arrive home at 10:00.
- I should be in bed now since it’s way past my bedtime
Past anything in a way “Way” indicates “far.” It can be used as follows:
I stayed out well after midnight.
This indicates that you stayed out beyond midnight, not simply till 12:05 or 12:30.
Here’s another illustration:
It’s pointless to apologize right now. The time has long since passed.
If someone has angered you so much that you have no hope of forgiving them, you might say this.
Hope that the meaning of the phrase ‘it’s way past my bedtime’ is clear now.