Is that correct "I tried to reach you today at 16:30 and I am going to cont

Question:

Is that correct "I tried to reach you today at 16:30 and I am going to contact you tomorrow morning."

English is my second language but I do my best to express myself properly... Thank you!

Best Answer - Chosen by Asker:

"I was unable to reach you today at 1630 hours so I will attempt to contact you tomorrow morning."

If you are living in Europe the standard time is designated in the 24-hour system using hours. If you're in the military, simply state 1630.