diff --git a/core/internals.py b/core/internals.py
index 47473cd..9a0ad32 100755
--- a/core/internals.py
+++ b/core/internals.py
@@ -129,7 +129,14 @@ def videotime_from_seconds(time):
 
 
 def get_sec(time_str):
-    v = time_str.split(':', 3)
+    if ':' in time_str:
+        splitter = ':'
+    elif '.' in time_str:
+        splitter = '.'
+    else:
+        raise ValueError("No expected character found in {} to split"
+                         "time values.".format(time_str))
+    v = time_str.split(splitter, 3)
     v.reverse()
     sec = 0
     if len(v) > 0:  # seconds
diff --git a/test/test_internals.py b/test/test_internals.py
index 2aaabf9..9fabdda 100644
--- a/test/test_internals.py
+++ b/test/test_internals.py
@@ -3,6 +3,7 @@ from core import internals
 import sys
 import os
 import subprocess
+import pytest
 
 
 def test_default_music_directory():
@@ -35,7 +36,7 @@ class TestPathFilterer:
         assert is_file == expect_file
 
 
-class TestVideoTime:
+class TestVideoTimeFromSeconds:
     def test_from_seconds(self):
         expect_duration = '35'
         duration = internals.videotime_from_seconds(35)
@@ -50,3 +51,32 @@ class TestVideoTime:
         expect_duration = '1:16:02'
         duration = internals.videotime_from_seconds(4562)
         assert duration == expect_duration
+
+
+class TestGetSeconds:
+    def test_from_seconds(self):
+        expect_secs = 45
+        secs = internals.get_sec('0:45')
+        assert secs == expect_secs
+        secs = internals.get_sec('0.45')
+        assert secs == expect_secs
+
+    def test_from_minutes(self):
+        expect_secs = 213
+        secs = internals.get_sec('3.33')
+        assert secs == expect_secs
+        secs = internals.get_sec('3:33')
+        assert secs == expect_secs
+
+    def test_from_hours(self):
+        expect_secs = 5405
+        secs = internals.get_sec('1.30.05')
+        assert secs == expect_secs
+        secs = internals.get_sec('1:30:05')
+        assert secs == expect_secs
+
+    def test_raise_error(self):
+        with pytest.raises(ValueError):
+            internals.get_sec('10*05')
+        with pytest.raises(ValueError):
+            internals.get_sec('02,28,46')