---
title: "daylightSavingTimeOffset(for:)"
framework: foundation
role: symbol
role_heading: Instance Method
path: "foundation/nstimezone/daylightsavingtimeoffset(for:)"
---

# daylightSavingTimeOffset(for:)

Returns the daylight saving time offset for a given date.

## Declaration

```swift
func daylightSavingTimeOffset(for aDate: Date) -> TimeInterval
```

## Parameters

- `aDate`: A date.

## Return Value

Return Value The daylight saving time offset for aDate.

## See Also

### Working with Daylight Savings

- [isDaylightSavingTime](foundation/nstimezone/isdaylightsavingtime.md)
- [isDaylightSavingTime(for:)](foundation/nstimezone/isdaylightsavingtime(for:).md)
- [daylightSavingTimeOffset](foundation/nstimezone/daylightsavingtimeoffset.md)
- [nextDaylightSavingTimeTransition](foundation/nstimezone/nextdaylightsavingtimetransition.md)
- [nextDaylightSavingTimeTransition(after:)](foundation/nstimezone/nextdaylightsavingtimetransition(after:).md)