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learn-build-service-prod merged 5 commits into from
Jun 18, 2025
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Repo sync for protected branch #2660

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0153084
Added example to startofweek
Jun 17, 2025
34a5011
Added example to endofweek
Jun 17, 2025
914d82e
Merge pull request #6930 from dyadav7/deepyadav_startofweek
v-ccolin Jun 18, 2025
9f1ac98
Merge pull request #6935 from MicrosoftDocs/main
Taojunshen Jun 18, 2025
7baf68f
Merging changes synced from https://github.com/MicrosoftDocs/dataexpl…
Jun 18, 2025
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31 changes: 31 additions & 0 deletions data-explorer/kusto/query/endofweek-function.md
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Original file line number Diff line number Diff line change
Expand Up @@ -52,6 +52,37 @@ The following example returns the end of the week for the specified date.
|2017-01-07 23:59:59.9999999|
|2017-01-14 23:59:59.9999999|

The following example returns the end of the week as Sunday for the specified date.

:::moniker range="azure-data-explorer"
> [!div class="nextstepaction"]
> <a href="https://dataexplorer.azure.com/clusters/help/databases/Samples?query=H4sIAAAAAAAAA3XQzwuCMBQH8Pv%2BikcXN1hQ0i8UD0Edo4NBh4hY7CmSKeikpPrfe7NECNth7Mdn7%2FFdigYw03l0Q7yEVaZVDQFwrQwui9gDuzDJFQU8GNBo9yelNXdIOxLGsivB%2B8BwIeFbUQjBXj5LqS2dqMBORp1T5CsCXT%2F7oPagNEWSxYIdWHvB3ZE7lTCjthMhYRAqUxVkB7KPTBvSxOoHMws2%2BX8wt2BXYWkFO%2FrWKGBPwLuh1PApvs70NtpT%2FuDnM5tY4g0tAMSOZgEAAA%3D%3D" target="_blank">Run the query</a>
::: moniker-end

```kusto
let endofweekSunday = (dateArg: datetime) {
datetime_add('day', 1, endofweek(datetime_add('day', -8, dateArg)))
};
let data=datatable(Date: datetime, day: string)
[
datetime(2025, 6, 14), "Saturday",
datetime(2025, 6, 15), "Sunday",
datetime(2025, 6, 16), "Monday",
datetime(2025, 6, 17), "Tuesday"
];
data
| extend SundayEndOfWeek=endofweekSunday(Date)
```

**Output**

|Date|day|SundayEndOfWeek|
|---|---|---|
|2025-06-14 00:00:00.0000000|Saturday|2025-06-08 23:59:59.9999999|
|2025-06-15 00:00:00.0000000|Sunday|2025-06-08 23:59:59.9999999|
|2025-06-16 00:00:00.0000000|Monday|2025-06-15 23:59:59.9999999|
|2025-06-17 00:00:00.0000000|Tuesday|2025-06-15 23:59:59.9999999|

## Related content

* [startofweek function](./startofweek-function.md)
Expand Down
36 changes: 34 additions & 2 deletions data-explorer/kusto/query/startofweek-function.md
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Expand Up @@ -30,7 +30,7 @@ Start of the week is considered to be a Sunday.

A datetime representing the start of the week for the given *date* value, with the offset, if specified.

## Example
## Examples

:::moniker range="azure-data-explorer"
> [!div class="nextstepaction"]
Expand All @@ -50,9 +50,41 @@ range offset from -1 to 1 step 1
|2017-01-01 00:00:00.0000000|
|2017-01-08 00:00:00.0000000|

The following example returns the start of the week as Monday for the specified date.

:::moniker range="azure-data-explorer"
> [!div class="nextstepaction"]
> <a href="https://dataexplorer.azure.com/clusters/help/databases/Samples?query=H4sIAAAAAAAAA3XQwQrCMAwA0Hu%2FIuxiCxV0uAmTHQTx5knBg4hUGsdwdlA7dKj%2Fbro59DB7KE37kpAW6ODqlHXl6YZ4XtrysiqNVjWkwLVyOLdZAv7g8gsKeDCg1cUHpTUfkB5IGMvfQryPDMl8agoh2GvGCmpPNyr1m1PHAvmCwLejT6gTqmxzkwm2Y90DD0dhJCGmxhMhIVgrV1mygewjUUMq8xfEHrST94OpB5sKr16w%2FcwbBewJeHdoNLS5Wxo97f3PZi7xBi07C4NvAQAA" target="_blank">Run the query</a>
::: moniker-end

```kusto
let startofweekFromMonday = (dateArg: datetime) {
datetime_add('day', 1, startofweek(datetime_add('day', -1, dateArg)))
};
let data=datatable(Date: datetime, day: string)
[
datetime(2025, 6, 14), "Saturday",
datetime(2025, 6, 15), "Sunday",
datetime(2025, 6, 16), "Monday",
datetime(2025, 6, 17), "Tuesday"
];
data
| extend MondayWeek=startofweekFromMonday(Date)
```

**Output**

|Date|day|MondayWeek|
|---|---|---|
|2025-06-14 00:00:00.0000000|Saturday|2025-06-09 00:00:00.0000000|
|2025-06-15 00:00:00.0000000|Sunday|2025-06-09 00:00:00.0000000|
|2025-06-16 00:00:00.0000000|Monday|2025-06-16 00:00:00.0000000|
|2025-06-17 00:00:00.0000000|Tuesday|2025-06-16 00:00:00.0000000|

## Related content

* [dayofweek function](./day-of-week-function.md)
* [endofweek function](./endofweek-function.md)
* [week_of_year function](./week-of-year-function.md)
* [ago function](./ago-function.md)
* [ago function](./ago-function.md)
* [bin function](./bin-function.md)