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dayofweek()

Applies to: ✅ Microsoft FabricAzure Data ExplorerAzure MonitorMicrosoft 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

The timespan data type