Normally, when adding or summing times in Excel, you will get the finally calculated result within 24 hours as the left screenshot shown. How about adding or summing times over 24 hours to display the real result? This article can help you.
Office Tab: Bring powerful tabs to Office (include Excel), just like Chrome, Safari, Firefox and Internet Explorer. Save you half the time, and reduce thousands of mouse clicks for you. 30-day Unlimited Free Trial
Kutools for Excel: Save 71% of your time and solve 82% Excel problems for you. 300+ advanced tools designed for 1500+ work scenario, make Excel much easy and increase productivity immediately.60-day Unlimited Free Trial
You just need to change the format of result cell to achieve it. Please do as follows.
1. After summing the times, select and right click the result cell, then select Format Cells from the right-clicking menu. See screenshot:
2. In the Format Cells dialog box, go to the Number tab, select Custom in the Category box, then enter [HH]:MM or [HH]:MM:SS into the Type box, and finally click the OK button. See screenshot:
Now the result of summing times is displayed over 24 hours as below screenshot shown.