Force 15-Minute Increments in a Time Card

Learn how to force your users to input values in 15-minute increments (or whole minutes, or whole hours, or whatever restrictions you want to set) by using a Validation Rule in Microsoft Access.

Sharon from Puyallup, WA (an Access Expert student) asks: I'm creating a time card in Microsoft Access. How do I restrict time entry to 15-minute increments? I was hoping to enter a validation rule that warns them they must enter time in 15-minute increments and let the user fix it, instead of automatically rounding. I don't know how to structure the validation test.

Members

I'll show you how to round the start time down to the nearest 15-minute interval, and round the end time up to the next interval. This is great for billing customers! LOL. We'll use the AfterUpdate event and the TimeSerial function along with some good old VBA coding.

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Links

Validation Rules: https://599cd.com/ValidationRule
Minute Function: https://599cd.com/ACX11
After Update: https://599cd.com/AfterUpdate
Time Serial: https://599cd.com/ACX28
Two Digit Hours Not Working: https://599cd.com/A4V7

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