Excel Time in Milliseconds: Precise Time Data

How To Set Time In Milliseconds In Excel

Click on an empty cell.

Type

=TIME(hour:minute:seconds)

Right click on the result (1), and choose format cell (2).

Choose custom (1), write hh(tt in this case):mm:ss,000;@ in the field under type (2), and press ok (3).

The Time format would now look like this:

By the way there are:

• 60 000 milliseconds in a minute,
• 3 600 000 in hour
• 86 400 000 milliseconds in a day,
• 604 800 000 milliseconds in a week,
• 2.62974383 × 10⁹ in a month,
• 3.1556926 × 10¹⁰ milliseconds in a year.

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Further reading: 
Basic concepts 
Getting started with Excel
Cell References