I hope this is the right place to post my little crisis...... I have just painstakingly entered over 200 lines of time data into my Excel using the hh:mm:ss Time format. But when I try to make a sum at the end to total the hours up, it is giving a VERY incorrect answer (wont show more than 10 hours) I think it might be because the final total will be over 24 hours, and I probably need to allow for a days? column, but after a bit of fiddling and diddling, I realise that I have no idea how to make a 'days' column. I need help!!!! Many thanks in advance for anyone who can help me add these numbers up. Blundery.