"due to a time conflict" is correct and usable in written English. You can use it when you need to explain why something did not happen because of a timing issue. For example: "I wasn't able to attend the meeting, due to a time conflict.".
A total of 33 volunteers withdrew from the study: eleven due to a time conflict; seven started using lipid-lowering medications; and 15 failed to attend consultations.
Five patients refused to participate due to time conflicts, absence or illness.
First, the response rate of blood samples collection was a bit low (67%), and according to the guideline of CHARLS, younger men were more likely to be missed in blood sample collection, mostly due to time conflict with their work.
Eight subjects withdrew from the study, one due to high blood pressure, another due to high blood cholesterol level, and six due to time conflicts.
And this time around, Facebook didn't send COO Sheryl Sandberg (apparently due to a scheduling conflict), though noted maybe-vampire and longtime Facebook board horror Peter Thiel was there.
Due to a scheduling conflict, the chat has been postponed.
Cotillard has been forced to quit production of the untitled project due to a scheduling conflict.
Awesome tool! I started using it one year ago and I never had to look for another app
Ha Thuy Vy
MA of Applied Linguistic, Maquarie University, Australia