diff --git a/TimeZoneNames.Tests/TimeZoneCountriesTests.cs b/TimeZoneNames.Tests/TimeZoneCountriesTests.cs
index 7e2cc73..39978a1 100644
--- a/TimeZoneNames.Tests/TimeZoneCountriesTests.cs
+++ b/TimeZoneNames.Tests/TimeZoneCountriesTests.cs
@@ -64,5 +64,22 @@ public void Can_Get_Zones_For_RU()
             
             Assert.True(!zones.Contains("Europe/London"));
         }
+
+        [Fact]
+        public void Can_Get_Zones_For_CA()
+        {
+            var zones = TimeZoneNames.GetTimeZoneIdsForCountry("CA");
+
+            foreach (var zone in zones)
+                _output.WriteLine(zone);
+
+            Assert.Equal(28, zones.Length);
+
+            Assert.True(zones.Contains("America/Vancouver"));
+            Assert.True(zones.Contains("America/Fort_Nelson"));
+            Assert.True(zones.Contains("America/Toronto"));
+
+            Assert.True(!zones.Contains("Europe/London"));
+        }
     }
 }
diff --git a/TimeZoneNames.Tests/TimeZoneNamesForCountriesTests.cs b/TimeZoneNames.Tests/TimeZoneNamesForCountriesTests.cs
index a6f2765..c519e81 100644
--- a/TimeZoneNames.Tests/TimeZoneNamesForCountriesTests.cs
+++ b/TimeZoneNames.Tests/TimeZoneNamesForCountriesTests.cs
@@ -1,5 +1,7 @@
 using System.Collections.Generic;
 using System.Diagnostics;
+using System.Globalization;
+using System.Linq;
 using Xunit;
 using Xunit.Abstractions;
 
@@ -122,5 +124,31 @@ public void Can_Get_Names_For_PG_English()
                 Assert.Equal(expected.Value[2], zones[tz].Daylight);
             }
         }
+
+        [Fact]
+        public void Can_Get_Names_For_All_Countries()
+        {
+            var countries = CultureInfo.GetCultures(CultureTypes.SpecificCultures)
+                .Select(x => new RegionInfo(x.LCID).TwoLetterISORegionName)
+                .Where(x => !string.IsNullOrEmpty(x))
+                .Where(x=> x.Length == 2)
+                .OrderBy(x => x)
+                .Distinct();
+
+            foreach (var country in countries)
+            {
+                try
+                {
+                    var zones = TimeZoneNames.GetTimeZonesForCountry(country, "en");
+                    _output.WriteLine(country + ": " + zones.Count);
+                    Assert.NotEqual(0, zones.Count);
+                }
+                catch
+                {
+                    _output.WriteLine(country + " -- FAILED");
+                    throw;
+                }
+            }
+        }
     }
 }