Question 1

How to use Time library with Grand Central Dispatch in Swift?

Accepted Answer

Time integrates directly with DispatchQueue by allowing time intervals as parameters, e.g., `DispatchQueue.main.asyncAfter(after: 5.seconds)`. This replaces error-prone raw TimeInterval values with type-safe units, as shown in the GCD integration example.

Question 2

Time vs DateComponents for handling time intervals in Swift?

Accepted Answer

Time provides type-safe, expressive APIs for simple interval calculations and arithmetic, while DateComponents is part of Foundation for more complex date manipulations involving calendars. Time is better for compile-time safety in intervals; DateComponents suits calendar-based date math.

Question 3

How to create a custom time unit like weeks in Time?

Accepted Answer

Define an enum conforming to the TimeUnit protocol with a static `toTimeIntervalRatio` property, then add extensions for Double and Int to use it like built-in units. The README provides a step-by-step example for implementing weeks.

Question 4

Does Time support time zones or daylight saving time adjustments?

Accepted Answer

No, Time is focused on time intervals only and does not handle time zones, calendars, or daylight saving time. For such features, you need to use Foundation's Date and Calendar APIs alongside Time for interval calculations.

Question 5

Can I install Time without using Swift Package Manager?

Accepted Answer

Official support for Carthage and CocoaPods is deprecated; the last version with support is 1.0.1. For current versions, Swift Package Manager is required, or you can manually copy the two source files, as mentioned in the installation section.

Question 6

What's the performance impact of using Time compared to raw TimeInterval?

Accepted Answer

Time adds type safety which might introduce minimal overhead due to abstractions, but for most apps, the benefit of compile-time error prevention outweighs any negligible performance cost. Benchmark in performance-critical sections if concerned, as it involves additional type conversions.

Time

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