![]() '2000' is an "anchor date" around which SQL will perform the date math. You will need to modify your GROUP BY to match, and you may want to use the whole ROUND(…) expression to avoid any unexpected float rounding. If you want to round your intervals inward such that each timestamp represents half an interval before and half an interval after it, use something like this: DATEADD(MINUTE, ROUND(1. End of interval: …) / 10 * 10 + 10, '2000'), credit to Daniel Elkington.If you want to label each row with the middle or end of its interval, you can tweak the division in the second term of DATEADD with the bold part below: The division ( /) operation after DATEDIFF truncates values to integers (a FLOOR shortcut), which yields the beginning of time intervals for each row in your SELECT output. Including it in the SELECT statement will give your output a single column with the truncated timestamp. Multiplying the GROUP BY expression by the interval size and wrapping it in a DATEADD invocation will return you a DATETIME value. Some other answers have collision between years. This means data sources over long time intervals are fine. The actual values being grouped are a set of relative offsets from 00:00. SELECT DATEADD(MINUTE, DATEDIFF(…) / * '2000') If you change the interval a lot, you might benefit from declaring it as a variable. For example, 10 with MINUTE is ten minute intervals 6 with HOUR is six hour intervals. The MINUTE and 10 terms can be changed to any DATEPART and integer, 2 respectively, to group into different time intervals. GROUP BY DATEDIFF(MINUTE, '2000', aa.) / 10ĭetails and extra commentary Bin interval size If you're on SQL Server 2022+, go straight to Martin's answer. With heavy acknowledgements to Derek's answer, which 1 forms the core of this one. And, finally, the "Limit Maximum Time" method will stop at midnight "00:00:00" if the time goes past midnight.Short and sweet GROUP BY DATEDIFF(MINUTE, '2000', date_column) / 10 The "Non-strict Time" method will keep incrementing hours and will display hours counter beyond 24 hours "24:30:00". The "Time with Overflow" method will display valid clock time plus the number of days difference between the old and new time "00:30:00 (+1)". The "Strict Clock Time" overflow method will display a valid clock time "00:30:00". We added four different ways of handling such overflows. For example, if you have a late evening time "23:30:00" and you add an hour to it, then it overflows. Also, you can control clock time overflows. The updated times can be printed in various formats, which include full digital time "13:05:20", 12-hour time "01:05:20 pm", just seconds: "47120", or spelled time: "13 hours, 5 minutes, 20 seconds". In the options, valid increment intervals are for example "1 hour", "2m 20s", or "01:01:01" (one hour, one minute, and one second). The program accepts multiple valid clock times as the input (one per line) and returns modified clock times in the output. In general, you can adjust the time by any number of hours, minutes, and seconds. Similarly, if you need to do a daylight saving adjustment, then you can shift the time forward by exactly 1 hour (if you need to shift time backward, use our clock time decrementer tool). For example, if you have a list of planned tasks for the day and now you need to move all the tasks forward by 1 hour, then with this tool, you can instantly increase all the clock times in the tasks list by exactly 1 hour. Adding more time can also be viewed as a time shift operation as the clock is moved forward. This is a quick online utility for adding more time to the given clock time.
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