From 348bcae763320da5dfa26258e812665ec5d5db96 Mon Sep 17 00:00:00 2001
From: Parker Moore <parkrmoore@gmail.com>
Date: Wed, 7 May 2014 15:48:13 -0400
Subject: [PATCH] If the input is a string but Time.parse can't parse it, maybe
 it's a UNIX timestamp.

Fixes #2339
---
 lib/jekyll/filters.rb | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/jekyll/filters.rb b/lib/jekyll/filters.rb
index 10c1aa41..450e3d78 100644
--- a/lib/jekyll/filters.rb
+++ b/lib/jekyll/filters.rb
@@ -230,7 +230,9 @@ module Jekyll
       when Time
         input
       when String
-        Time.parse(input)
+        Time.parse(input) rescue Time.at(input.to_i)
+      when Number
+        Time.at(input)
       else
         Jekyll.logger.error "Invalid Date:", "'#{input}' is not a valid datetime."
         exit(1)