10 am
Correct spelling
10:00 am
Correct spelling
10am
Incorrect spelling
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Written by: WhichIsCorrect.com
The editorial staff of the WhichIsCorrect.com online dictionary is a group of English language lovers, consisting of native speakers, linguists, and English philology graduates. By using our content, you can be sure it has been prepared by professionals.
Last updated: April 5, 2018
Published on: December 26, 2017
Oh boy I totally thought the second spelling is right. I would like to thank you for given advice.