times between church and reception!

So i have my ceremony at a church in patchogue thats starting at 4, and my reception is at east wind which originally when i went for my appt. to look at the place they wrote down my reception for 6:30, but when i went to finalize everything they put it for 7:30. I am unable to switch my ceremony time so i tried calling east wind to switch my reception back to 6:30 but they can only switch it to start at 7. so my question is how long is too long between ceremony and reception. Mine is prob going to be like between 1- 1.5 hours in between. I feel like thats too long? or am i just going crazy over every little detail? haha. TIA!