isdst

Determine daylight saving time elements

Syntax

tf = isdst(t)

Description

tf = isdst(t)returns an array the same size astcontaining logical 1 (true) where the corresponding element oftis a datetime that occurs during Daylight Saving Time, and logical 0 (false) otherwise.isdstreturnsfalsefor all elements when theTimeZoneproperty oftis empty ('').

Examples

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Determine If Datetime Occurs During Daylight Saving Time

Open Live Script

t = datetime(2014,3,7:11,'TimeZone','America/New_York')

t =1x5 datetime07-Mar-2014 08-Mar-2014 09-Mar-2014 10-Mar-2014 11-Mar-2014

tf = isdst(t)

tf =1x5 logical array0 0 0 1 1

March 10 and March 11, 2014 in theAmerica/New_Yorktime zone occur during daylight saving time.

Input Arguments

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`t`—Input date and time
`datetime`array

Input date and time, specified as adatetimearray.

Extended Capabilities

Tall Arrays
Calculate with arrays that have more rows than fit in memory.

This function fully supports tall arrays. For more information, seeTall Arrays.

Distributed Arrays
Partition large arrays across the combined memory of your cluster using Parallel Computing Toolbox™.

This function fully supports distributed arrays. For more information, seeRun MATLAB Functions with Distributed Arrays(Parallel Computing Toolbox).

MATLAB Documentation

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