diff --git a/changelog.md b/changelog.md
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,8 @@
 # Change Log
 
+## [1.8.0.3]
+- Add "Quick start" documentation
+
 ## [1.8.0.2]
 - Fix behaviour of %Q in format
 
diff --git a/configure.ac b/configure.ac
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-AC_INIT([Haskell time package], [1.8.0.2], [ashley@semantic.org], [time])
+AC_INIT([Haskell time package], [1.8.0.3], [ashley@semantic.org], [time])
 
 # Safety check: Ensure that we are in the correct source directory.
 AC_CONFIG_SRCDIR([lib/include/HsTime.h])
diff --git a/lib/Data/Time.hs b/lib/Data/Time.hs
--- a/lib/Data/Time.hs
+++ b/lib/Data/Time.hs
@@ -1,3 +1,30 @@
+{-|
+
+= Quick Start
+
+Use these types for time regardless of location (not caring about leap-seconds):
+
+* 'UTCTime' for actual times
+* 'NominalDiffTime' for differences between times, i.e. durations
+
+Use these types for the ways people refer to time:
+
+* 'Day' for something like June 27th 2017
+* 'TimeOfDay' for something like 5pm
+* 'LocalTime' for a 'Day' with a 'TimeOfDay'
+* 'TimeZone' for a time zone offset (not actually the time zone itself) like -0700
+* 'ZonedTime' for a 'LocalTime' with a 'TimeZone'
+
+Use this for low-latency timing:
+
+* 'Data.Time.Clock.System.SystemTime'
+
+These are less commonly needed:
+
+* 'Data.Time.Clock.TAI.AbsoluteTime' and 'DiffTime' if you do care about leap-seconds.
+* 'Data.Time.Clock.TAI.LeapSecondMap' for tracking the leap-seconds
+* 'UniversalTime' for time based on Earth rotation
+-}
 module Data.Time
 (
     module Data.Time.Calendar,
diff --git a/time.cabal b/time.cabal
--- a/time.cabal
+++ b/time.cabal
@@ -1,5 +1,5 @@
 name:           time
-version:        1.8.0.2
+version:        1.8.0.3
 stability:      stable
 license:        BSD3
 license-file:   LICENSE
@@ -8,7 +8,7 @@
 homepage:       https://github.com/haskell/time
 bug-reports:    https://github.com/haskell/time/issues
 synopsis:       A time library
-description:    A time library
+description:    Time, clocks and calendars
 category:       Time
 build-type:     Configure
 cabal-version:  >=1.10