diff --git a/src/date_util.js b/src/date_util.js
index d94e366..9e2037a 100644
--- a/src/date_util.js
+++ b/src/date_util.js
@@ -146,8 +146,8 @@ function parseDate(s, ignoreTimezone) { // ignoreTimezone defaults to true
 		return new Date(s * 1000);
 	}
 	if (typeof s == 'string') {
-		if (s.match(/^\d+$/)) { // a UNIX timestamp
-			return new Date(parseInt(s, 10) * 1000);
+		if (s.match(/^\d+(\.\d+)?$/)) { // a UNIX timestamp
+			return new Date(parseFloat(s) * 1000);
 		}
 		if (ignoreTimezone === undefined) {
 			ignoreTimezone = true;
diff --git a/tests/sources.html b/tests/sources.html
index d3c6129..e2ecde6 100644
--- a/tests/sources.html
+++ b/tests/sources.html
@@ -83,6 +83,10 @@
 			start: new Date(y, m, 28),
 			end: new Date(y, m, 29),
 			url: 'http://google.com/'
+		},
+		{
+			title: 'Float String Timestamp Event',
+			start: '1295078400.0'
 		}
 	];