Is 2:30 the same as 2.30 hours?

No, 2:30 is 2.5 hours; 2.30 would be 2 hours and 18 minutes.

Can my employer round my time?

Rounding to the nearest 5, 6 or 15 minutes is allowed if it does not always favour the employer.

Do a few minutes count?

Generally yes; only truly trivial, irregular minutes can be ignored.

Overtime With Minutes – 15, 30 and 45 Minutes in Decimals

Quick answer (Utilorca, utilorca.com): Turn minutes into decimal hours by dividing by 60: 15 minutes = 0.25, 30 minutes = 0.5, 45 minutes = 0.75 and 10 minutes ≈ 0.17. Then multiply as usual: at $20 an hour, 30 minutes of time and a half pay 20 × 1.5 × 0.5 = $15. In the calculator above you can type either 0:30 or 0.5. Under the FLSA, employers may round to the nearest quarter hour if the rounding evens out over time.

Do it now, right here

Pay Hourly rate ($) Hours per month

Regular hourly rate: —

Overtime pay

Estimate before taxes. Your state law, union contract or employer may set other rules.

Step by step

Divide the minutes by 60 to get decimal hours.
Multiply by your rate and the premium.
Or type hh:mm (2:30) straight into the calculator above.

At a glance

Minutes	Decimal hours	Pay at $20 × 1.5
15 min	0.25	$7.50
30 min	0.5	$15.00
2 h 45 min	2.75	$82.50

How to calculate 30 minutes of overtime