Merge pull request #7 from algesten/master

fix for incorrect time zone. close #5

lib/lune.js

@@ -31,7 +31,7 @@
    * Converts a Number in Julian date form to a Date object.
    * Source: http://blog.bahrenburgs.com/2011/01/javascript-julian-day-conversions.html
    */
-  Number.prototype.Julian2Date = function() {
+  Number.prototype.Julian2Date = function(inUTC) {
     var X = parseFloat(this)+0.5;
     var Z = Math.floor(X); //Get day without time
     var F = X - Z; //Get time
@@ -59,7 +59,11 @@
     UT *= 60;
     var second = Math.round(UT);
 
-    return new Date(year, month, day, hour, minute, second);
+    if (inUTC) {
+      return new Date(Date.UTC(year, month, day, hour, minute, second));
+    } else {
+      return new Date(year, month, day, hour, minute, second);
+    }
   };
 
   /**
@@ -409,7 +413,7 @@
       console.log("TRUEPHASE called with invalid phase selector ", tphase);
     }
 
-    return pt.Julian2Date();
+    return pt.Julian2Date(true);
   }
 
   /**
@@ -447,4 +451,3 @@
    'phase': phase
   };
 })();
-

test/index.js

@@ -20,4 +20,21 @@ describe('lune', function() {
       assert.equal(JSON.stringify(feb17), JSON.stringify(lunedata));
     });
   });
+
+    describe('#phase_hunt', function() {
+        it('should handle timezones correctly', function() {
+            process.env.TZ = 'America/New_York';
+            var d = new Date(2014, 10, 1, 16, 56, 00);
+            var t = d.getTime();
+            if (1414837560000 != t) {
+                console.log('Unable to run timezone test because process.env.TZ quirk. '+
+                            'See https://github.com/joyent/node/issues/3286');
+                return;
+            }
+            var hunt = lune.phase_hunt(d);
+            // 1415292777000 incorrect EST time
+            // 1415312577000 correct UTC time
+            assert(1415312577000, hunt.full_date.getTime());
+        });
+    });
 });