Objective: How long did this person live? If I format as yyyy-mm-dd HH:MM, and enter 1955-10-25 19:23 in J5, and enter 1955-10-26 02:07 in J6. Entering =J6-J5 in cell J7, yields 1900-01-00 06:44. I know and understand that "1900" is zero in this case, but does anyone have a suggestion how work the formula so that the answer above would read: "0000-00-00 06:44" -or- 0yrs 0mths 0 dys 6hrs 44 mins ???? The last two formats would be easier for non-computer literate people to understand. I prefer the YYYY-MM-DD HH:MM format if possible. It will be faster for students to enter. Thank you everyone. Robert ************************************************************* You are receiving this mail because you subscribed to mso@xxxxxxxxxxxxx or MicrosoftOffice@xxxxxxxxxxxxxxxx To send mail to the group, simply address it to mso@xxxxxxxxxxxxx To Unsubscribe from this group, send an email to mso-request@xxxxxxxxxxxxx with the word "unsubscribe" (without the quotes) in the subject line. Or, visit the group's homepage and use the dropdown menu. This will also allow you to change your email settings to digest or vacation (no mail). //www.freelists.org/webpage/mso To be able to use the files section for sharing files with the group, send a request to mso-moderators@xxxxxxxxxxxxx and you will be sent an invitation with instructions. Once you are a member of the files group, you can go here to upload/download files: http://www.smartgroups.com/vault/msofiles *************************************************************