I can only conclude that differences between our systems mean they handle your workbook data slightly differently. Some of that may be related to your use of custom time formats that in cells that don't contain times. How about we start with the workbook and change all the formatting to 'General', then apply the data & time formats to the entire columns containing those data (dates - B, AP, AS, AV; times - N, O, Z, AB, DZ, EA, EC, ED). That way at least we might start talking on the same wavelength. See attached.

Attached Files

Aug-30 (Sun) schedule_3B.xlsx (24.0 KB, 11 views)

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Cheers,
Paul Edstein
[Fmr MS MVP - Word]