Excel - Counting number of days between two entries


I have an Excel workbook with daily entries of my lunch and dinner meals. On a separate sheet, I'm counting the total number of occurrences of each meal. But I would also like to count the number of days its been since the last time I had a "sandwich", for example. This way I know what I haven't eaten in a while. Is there a way to do this?


Suppose date of sandwich was 12/1/2009(1st December 2009)
suppose it is in A1
in any other cell if you type the formula


and you format this cell as number then you get 59 that is 59 days since you had sandwich


Thanks to venkat1926 for this tip on the forum.

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