Drilling experiments were done between 2.15-3.15pm. Is this sentence awkward?
I am writing a report. I want to know whether there are other better way to express the sentence in the title.

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Answer

I would probably say "The drilling experiments were done between 2:15 and 3:15pm"

Without saying "the" it makes the sentence more of of a quick note you would write into a report then a proper sentence.

I changed the way the time was written just based on how it is written in my area but time is written differently depending where you are.