From fca514b8da1ecadf9df299f1cb7b6950fb700be7 Mon Sep 17 00:00:00 2001
From: Eric Davies <iamed2@gmail.com>
Date: Thu, 21 Dec 2017 13:07:48 -0600
Subject: [PATCH] Allow constructing a FixedTimeZone from Dates.UTC and allow
 passing it to ZonedDateTime

---
 src/conversions.jl  | 2 ++
 src/types.jl        | 4 ++++
 test/conversions.jl | 5 +++++
 3 files changed, 11 insertions(+)

diff --git a/src/conversions.jl b/src/conversions.jl
index c855797b7..158399859 100644
--- a/src/conversions.jl
+++ b/src/conversions.jl
@@ -3,6 +3,8 @@ import Compat.Dates: now, julian2datetime, unix2datetime
 # UTC is an abstract type defined in Dates, for some reason
 const utc_tz = FixedTimeZone("UTC")
 
+FixedTimeZone(::UTC) = utc_tz
+
 """
     DateTime(::ZonedDateTime) -> DateTime
 
diff --git a/src/types.jl b/src/types.jl
index 89c61e118..02e400fb5 100644
--- a/src/types.jl
+++ b/src/types.jl
@@ -172,6 +172,10 @@ function ZonedDateTime(dt::DateTime, tz::FixedTimeZone; from_utc::Bool=false)
     return ZonedDateTime(utc_dt, tz, tz)
 end
 
+function ZonedDateTime(dt::DateTime, tz::UTC; from_utc::Bool=false)
+    return ZonedDateTime(dt, FixedTimeZone(tz); from_utc=from_utc)
+end
+
 """
     ZonedDateTime(dt::DateTime, tz::VariableTimeZone, occurrence::Integer) -> ZonedDateTime
 
diff --git a/test/conversions.jl b/test/conversions.jl
index 1b75ba53a..65e5e66a1 100644
--- a/test/conversions.jl
+++ b/test/conversions.jl
@@ -3,6 +3,11 @@ import Compat.Dates
 utc = FixedTimeZone("UTC")
 warsaw = resolve("Europe/Warsaw", tzdata["europe"]...)
 
+# Converting from the stdlib UTC
+@test FixedTimeZone(UTC()) == utc
+dt = DateTime(2015, 1, 1, 0)
+@test ZonedDateTime(dt, FixedTimeZone(UTC())) == ZonedDateTime(dt, utc)
+
 # Converting a ZonedDateTime into a DateTime
 dt = DateTime(2015, 1, 1, 0)
 zdt = ZonedDateTime(dt, warsaw)