Kieran Hunt

Just a quick note to say that Kotlin’s Duration support awesome.

• ⏱️ Extension properties for Double, Int, and Long: Use something like 1.days or 2.hours to produce a Kotlin duration. It’s more expressive than Java’s Duration.ofDays(1) or Duration.ofhours(2).
• 📝 Retrieve an ISO8601-compatible duration string: Call toIsoString() and you’ll get something like "PT1D" or "PT2H".
• 🔢 Convert to whole milliseconds, seconds, etc: Use properties like inWholeMilliseconds or inWholeSeconds to conver to Long representations when you need them.
• 📐 Mathematical operations work how you’d expect: 1.day + 2.hours + 3.minutes does what you’d expect. So does 1.day > 2.hours.

Reminds me a lot of ActiveSupport (archive). For more, read Duration’s Companion (archive) object or the Duration (archive) class itself in the Kotlin documentation.