Why do you wonder that, you're not playing
The tournament OOP wasn't published before our OOP. I did extend the deadline one day, but Evita didn't approve
so I didn't do it again.
Just tell it like it is, you didn't have another late meeting scheduled so no reason to postpone the deadline
But in all seriousness, what other deadline could there be for today? The matches start at 11am and Del Potro is playing third. There is no other deadline. What if both first matches were cut short by retirements (unlikely, I know, but still) and Del Potro had to start playing less than an hour after 11 am? I think the correct thing to do here is set the deadline at 11am when matches start.
Edit: I'm typing too slowly