diff --git a/src/Jackett/Utils/DateTimeUtil.cs b/src/Jackett/Utils/DateTimeUtil.cs
index 49dcd00f0..af2324f9a 100644
--- a/src/Jackett/Utils/DateTimeUtil.cs
+++ b/src/Jackett/Utils/DateTimeUtil.cs
@@ -85,6 +85,9 @@ namespace Jackett.Utils
 
         public static TimeSpan ParseTimeSpan(string time)
         {
+            if (string.IsNullOrWhiteSpace(time))
+                return TimeSpan.Zero;
+
             TimeSpan offset = TimeSpan.Zero;
             if (time.EndsWith("AM"))
             {
@@ -122,9 +125,9 @@ namespace Jackett.Utils
         }
 
         public static Regex timeAgoRegexp = new Regex(@"(?i)\bago", RegexOptions.Compiled);
-        public static Regex todayRegexp = new Regex(@"(?i)\btoday([\s,]+|$)", RegexOptions.Compiled);
-        public static Regex tomorrowRegexp = new Regex(@"(?i)\btomorrow([\s,]+|$)", RegexOptions.Compiled);
-        public static Regex yesterdayRegexp = new Regex(@"(?i)\byesterday([\s,]+|$)", RegexOptions.Compiled);
+        public static Regex todayRegexp = new Regex(@"(?i)\btoday([\s,]*|$)", RegexOptions.Compiled);
+        public static Regex tomorrowRegexp = new Regex(@"(?i)\btomorrow([\s,]*|$)", RegexOptions.Compiled);
+        public static Regex yesterdayRegexp = new Regex(@"(?i)\byesterday([\s,]*|$)", RegexOptions.Compiled);
         public static Regex missingYearRegexp = new Regex(@"^\d{1,2}-\d{1,2}\b", RegexOptions.Compiled);
         public static Regex missingYearRegexp2 = new Regex(@"^(\d{1,2}\s+\w{3})\s+(\d{1,2}\:\d{1,2}.*)$", RegexOptions.Compiled); // 1 Jan 10:30