Rounding Up Time to the Nearest X Minutes
When dealing with timestamps, it often becomes necessary to round time values to specific intervals. For instance, you may need to round a time to the nearest 15 minutes, especially when working with scheduling or appointment systems.
To address this need, there exists a versatile function that allows for the straightforward rounding up of a DateTime object to the nearest X minutes.
Implementation
The following code snippet showcases the aforementioned function:
DateTime RoundUp(DateTime dt, TimeSpan d) { return new DateTime((dt.Ticks + d.Ticks - 1) / d.Ticks * d.Ticks, dt.Kind); }
Usage
To employ this function, simply provide the DateTime you wish to round and the interval (TimeSpan) to round to. For example, to round up to the nearest 15 minutes:
var dt1 = RoundUp(DateTime.Parse("2011-08-11 16:59"), TimeSpan.FromMinutes(15)); // dt1 == {11/08/2011 17:00:00}
This will round the time to the nearest 15-minute interval, resulting in 17:00 in the example above.
Additional Examples
- Rounding up to the nearest 30 minutes:
var dt2 = RoundUp(DateTime.Parse("2011-08-11 17:11"), TimeSpan.FromMinutes(30)); // dt2 == {11/08/2011 17:30:00}
- Rounding up to the nearest 60 minutes (1 hour):
var dt3 = RoundUp(DateTime.Parse("2011-08-11 18:05"), TimeSpan.FromMinutes(60)); // dt3 == {11/08/2011 19:00:00}
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