diff --git a/.gitignore b/.gitignore
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,12 @@
-dist
+/dist
+/.stack-work
+*~
 *.o
 *.hi
-*~
+*.chi
+*.chs.h
+/.virthualenv
+/.hsenv
+/.cabal-sandbox/
+/cabal.sandbox.config
+/cabal.config
diff --git a/Data/Time/Lens.hs b/Data/Time/Lens.hs
--- a/Data/Time/Lens.hs
+++ b/Data/Time/Lens.hs
@@ -140,6 +140,7 @@
   -- * Miscellaneous
   , utcInTZ
   , utcAsLocal
+  , zonedAsLocal
   , julianDay
   , julianDT
   , gregorianDate
@@ -152,6 +153,9 @@
 import Data.Time.Clock
 import Data.Time.LocalTime
 
+-- To avoid the 'redundant import' warning for Applicative:
+import Prelude
+
 --------------------------------------------------------------------------------
 -- 'Flexible' data types to properly implement rolling-over behavior.
 
@@ -217,6 +221,10 @@
   flexDT = utcAsLocal.flexDT
   {-# INLINE flexDT #-}
 
+instance FlexibleDateTime ZonedTime where
+  flexDT = zonedAsLocal . flexDT
+  {-# INLINE flexDT #-}
+
 -- | Type class to provide correct roll-over behavior for date lenses.
 --
 -- Used exactly as 'flexDT', but for values that have only \"date\"
@@ -289,6 +297,10 @@
   date f (LocalTime d t) = flip LocalTime t <$> f d
   {-# INLINE date #-}
 
+instance Dateable ZonedTime where
+  date = zonedAsLocal . date
+  {-# INLINE date #-}
+
 instance Dateable Day where
   date = id
   {-# INLINE date #-}
@@ -389,6 +401,10 @@
   time f (LocalTime d t) = LocalTime d <$> f t
   {-# INLINE time #-}
 
+instance Timeable ZonedTime where
+  time = zonedAsLocal . time
+  {-# INLINE time #-}
+
 instance Timeable TimeOfDay where
   time = id
   {-# INLINE time #-}
@@ -446,3 +462,8 @@
 utcInTZ :: TimeZone -> Iso' UTCTime LocalTime
 utcInTZ tz = iso (utcToLocalTime tz) (localTimeToUTC tz)
 {-# INLINE utcInTZ #-}
+
+-- | Lens into the 'LocalTime' part of 'ZonedTime'.
+zonedAsLocal :: Lens' ZonedTime LocalTime
+zonedAsLocal f (ZonedTime lt tz) = flip ZonedTime tz <$> f lt
+{-# INLINE zonedAsLocal #-}
diff --git a/lens-datetime.cabal b/lens-datetime.cabal
--- a/lens-datetime.cabal
+++ b/lens-datetime.cabal
@@ -1,5 +1,5 @@
 name: lens-datetime
-version: 0.2.1
+version: 0.3
 license: BSD3
 license-file: LICENSE
 author: Mihaly Barasz <klao@nilcons.com>
@@ -8,8 +8,8 @@
 cabal-version: >= 1.6
 category: Data, Lenses
 stability: experimental
-homepage: http://github.com/nilcons/lens-datetime
-bug-reports: http://github.com/nilcons/lens-datetime/issues
+homepage: https://github.com/nilcons/lens-datetime
+bug-reports: https://github.com/nilcons/lens-datetime/issues
 synopsis: Lenses for Data.Time.* types
 
 description:
@@ -60,6 +60,7 @@
 
 extra-source-files:
   README.md
+  stack.yaml
   .gitignore
 
 source-repository head
diff --git a/stack.yaml b/stack.yaml
new file mode 100644
--- /dev/null
+++ b/stack.yaml
@@ -0,0 +1,35 @@
+# For more information, see: http://docs.haskellstack.org/en/stable/yaml_configuration/
+
+# Specifies the GHC version and set of packages available (e.g., lts-3.5, nightly-2015-09-21, ghc-7.10.2)
+resolver: lts-5.14
+
+# Local packages, usually specified by relative directory name
+packages:
+- '.'
+
+# Packages to be pulled from upstream that are not in the resolver (e.g., acme-missiles-0.3)
+extra-deps: []
+
+# Override default flag values for local packages and extra-deps
+flags: {}
+
+# Extra package databases containing global packages
+extra-package-dbs: []
+
+# Control whether we use the GHC we find on the path
+# system-ghc: true
+
+# Require a specific version of stack, using version ranges
+# require-stack-version: -any # Default
+# require-stack-version: >= 1.0.0
+
+# Override the architecture used by stack, especially useful on Windows
+# arch: i386
+# arch: x86_64
+
+# Extra directories used by stack for building
+# extra-include-dirs: [/path/to/dir]
+# extra-lib-dirs: [/path/to/dir]
+
+# Allow a newer minor version of GHC than the snapshot specifies
+# compiler-check: newer-minor