diff --git a/src/Effect/Now.js b/src/Effect/Now.js
index 8b77555..d81d724 100644
--- a/src/Effect/Now.js
+++ b/src/Effect/Now.js
@@ -3,3 +3,8 @@
 exports.now = function () {
   return Date.now();
 };
+
+exports.getTimezoneOffset = function () {
+  var n = new Date(Date.now());
+  return n.getTimezoneOffset();
+};
diff --git a/src/Effect/Now.purs b/src/Effect/Now.purs
index cb82b6a..87a12cd 100644
--- a/src/Effect/Now.purs
+++ b/src/Effect/Now.purs
@@ -3,11 +3,13 @@ module Effect.Now
   , nowDateTime
   , nowDate
   , nowTime
+  , getTimezoneOffset
   ) where
 
 import Prelude
 
 import Data.DateTime (Date, DateTime, Time, date, time)
+import Data.Time.Duration (Minutes)
 import Data.DateTime.Instant (Instant, toDateTime)
 import Effect (Effect)
 
@@ -27,3 +29,6 @@ nowDate = date <<< toDateTime <$> now
 -- | Gets the time according to the current machine’s clock.
 nowTime :: Effect Time
 nowTime = time <<< toDateTime <$> now
+
+-- | Gets the time zone difference, in minutes, from current local (host system settings) to UTC using `now`.
+foreign import getTimezoneOffset :: Effect Minutes