dayofweek()
Applies to: ✅ Microsoft Fabric ✅ Azure Data Explorer ✅ Azure Monitor ✅ Microsoft Sentinel
Returns the number of days since the preceding Sunday, as a timespan.
To convert timespan to int, see Convert timespan to integer.
Syntax
dayofweek(date)
Learn more about syntax conventions.
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
| date | datetime |
✔️ | The datetime for which to determine the day of week. |
Returns
The timespan since midnight at the beginning of the preceding Sunday, rounded down to an integer number of days.
Examples
The following example returns 0, indicating that the specified datetime is a Sunday.
print
Timespan = dayofweek(datetime(1947-11-30 10:00:05))
Output
| Timespan |
|---|
| 00:00:00 |
The following example returns 1, indicating that the specified datetime is a Monday.
print
Timespan = dayofweek(datetime(1970-05-11))
Output
| Timespan |
|---|
| 1.00:00:00 |
Convert timespan to integer
The following example returns the number of days both as a timespan and as data type int.
let dow=dayofweek(datetime(1970-5-12));
print Timespan = dow, Integer = toint(dow/1d)
Output
| Timespan | Integer |
|---|---|
| 2.00:00:00 | 2 |