Added comment as requested in: https://github.com/moment/moment/pull/3504

diff --git a/src/lib/units/offset.js b/src/lib/units/offset.js
index 4591bd25b45a12d734c170e70bcb22e7e39f8d15..bd34130df64614545b9bf48746e3050c1d997221 100644 (file)
--- a/src/lib/units/offset.js
+++ b/src/lib/units/offset.js
@@ -161,6 +161,7 @@ export function setOffsetToLocal (keepLocalTime) {
 }
 
 export function setOffsetToParsedOffset () {
+    //`this._tzm` can be a modifier of 0, otherwise check if its a truthy value
     if (this._tzm === 0 || this._tzm) {
         this.utcOffset(this._tzm);
     } else if (typeof this._i === 'string') {