Uncategorized Excel – adding and subtracting units of time December 6, 2015 mfkelleher https://support.office.com/en-us/article/Add-or-subtract-units-of-time-9a6558a1-a86b-41d4-b244-1000fc7d31e9 Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related