Add Date.fromTime function, based on PR #357

libraries/Date.elm

@@ -5,7 +5,7 @@ module Date where
 issues with internationalization or locale formatting.
 
 # Conversions
-@docs read, toTime
+@docs read, toTime, fromTime
 
 # Extractions
 @docs year, month, Month, day, dayOfWeek, Day, hour, minute, second
@@ -36,6 +36,10 @@ read = Native.Date.read
 toTime : Date -> Time
 toTime = Native.Date.toTime
 
+{-| Take a UNIX time and convert it to a `Date` -}
+fromTime : Time -> Date
+fromTime = Native.Date.fromTime
+
 {-| Extract the year of a given date. Given the date 23 June 1990 at 11:45AM
 this returns the integer `1990`. -}
 year : Date -> Int

libraries/Native/Date.js

@@ -27,6 +27,7 @@ Elm.Native.Date.make = function(elm) {
      minute  : function(d) { return d.getMinutes(); },
      second  : function(d) { return d.getSeconds(); },
      toTime  : function(d) { return d.getTime(); },
+     fromTime: function(t) { return new window.Date(t); },
      dayOfWeek : function(d) { return { ctor:dayTable[d.getDay()] }; }
  };