Update Proposals/NNNN-UTCClock.md

phausler · itingliu · web-flow · commit 202c564d88fb · 2025-06-10T09:39:31.000-07:00
Co-authored-by: Tina L &lt;49205802+itingliu@users.noreply.github.com&gt;
diff --git a/Proposals/NNNN-UTCClock.md b/Proposals/NNNN-UTCClock.md
@@ -70,6 +70,7 @@ extension Date: InstantProtocol {
     public func duration(to other: Date) -> Duration
 }
 
+@available(FoundationPreview 6.2, *)
 extension Date {
     public static func leapSeconds(from start: Date, to end: Date) -> Duration
 }

Original file line number	Diff line number	Diff line change
`@@ -70,6 +70,7 @@ extension Date: InstantProtocol {`
`70`	`70`	`public func duration(to other: Date) -> Duration`
`71`	`71`	`}`
`72`	`72`
	`73`	`+@available(FoundationPreview 6.2, *)`
`73`	`74`	`extension Date {`
`74`	`75`	`public static func leapSeconds(from start: Date, to end: Date) -> Duration`
`75`	`76`	`}`