avoiding repetition

Hello everyone.

The registration commences fifty five days prior to the election day and ends thirty five days prior to the election day.

Can I leave out the highlighted part of the sentence to avoid repetition?

Thank you.

I think you cannot leave it, because your sentence will not be understood.

Thank you, Lily.

You could say “… fifty-five days prior to election day and ends 20 days later.” or “The registration runs from fifty-five days to thirty-five days prior to election day.”

Thank you, Luschen.