startofyear()
Returns the start of the year containing the date, shifted by an offset, if provided.
Syntax
startofyear(date [,offset])
Arguments
date: The input date.offset: An optional number of offset years from the input date (integer, default - 0).
Returns
A datetime representing the start of the year for the given date value, with the offset, if specified.
Example
range offset from -1 to 1 step 1
| project yearStart = startofyear(datetime(2017-01-01 10:10:17), offset)
| yearStart |
|---|
| 2016-01-01 00:00:00.0000000 |
| 2017-01-01 00:00:00.0000000 |
| 2018-01-01 00:00:00.0000000 |