Calendar reminders odd times showing

My wife has her calendar on her iPhone using the native calendar on her phone.

She set a reminder, on my android it shows up as 22057504 minutes before the event.

Pretty sure thats not correct. See attachment

When I set a reminder, lets say 30 min before, she gets it 30 min after.

Is this something I can change in the config to correct?

Screenshot_2018-03-10-22-53-59|281x500