diff --git a/tests/test_utils.py b/tests/test_utils.py
index 162c5e29..bfc53663 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -27,6 +27,10 @@
     safe_save,
     parse_tags,
     PY2,
+    isTime,
+    isDateTime,
+    getDateTimeToday,
+    getMergedDateTime
 )
 from . import mock_datetime
 
@@ -228,3 +232,49 @@ def test_confirm_tags_reject_raises_abort(confirm):
     watson_tags = ['a', 'b']
     with pytest.raises(Abort):
         confirm_project(tags, watson_tags)
+
+
+@pytest.mark.parametrize("date_time_string, result", [
+    ("2018-05-28 7:00", False),
+    ("2018-05.28 7:00", False),
+    ("7:00", True),
+    ("17:00", True),
+    ("117:00", False),
+    ("117", False),
+])
+def test_isTime(date_time_string, result):
+    assert isTime(date_time_string) == result
+
+
+@pytest.mark.parametrize("date_time_string, result", [
+    ("2018-05-28 7:00", True),
+    ("2018-05-28 07:00", True),
+    ("2018-05-28 127:00", False),
+    ("2018-05-f 7:00", False),
+    ("2018-05-28 7.00", False),
+    ("7:00", False),
+])
+def test_isDateTime(date_time_string, result):
+    assert isDateTime(date_time_string) == result
+
+
+@pytest.mark.parametrize("date_time, time_string", [
+    ("2014-04-01", "07:00"),
+    ("2014-04-01", "17:00"),
+])
+def test_getMergedDateTime(date_time, time_string):
+    result = arrow.get("{} {}".format(date_time, time_string), 'YYYY-MM-DD HH:mm')
+    date = arrow.get(date_time, 'YYYY-MM-DD')
+    assert getMergedDateTime(date, time_string) == result
+
+
+@pytest.mark.parametrize("time_string", [
+    ("07:00"),
+    ("17:00"),
+    ("09:05"),
+    ("13:37"),
+])
+def test_getDateTimeToday(time_string):
+    today = datetime.date.today().strftime("%Y-%m-%d")
+    result = arrow.get("{} {}".format(today, time_string), 'YYYY-MM-DD HH:mm').replace(tzinfo='local')
+    assert getDateTimeToday(time_string) == result
diff --git a/watson/cli.py b/watson/cli.py
index ad41fcdc..3d9f3f37 100644
--- a/watson/cli.py
+++ b/watson/cli.py
@@ -26,6 +26,10 @@
     sorted_groupby,
     style,
     parse_tags,
+    isTime,
+    isDateTime,
+    getDateTimeToday,
+    getMergedDateTime
 )
 
 
@@ -1013,22 +1017,6 @@ def frames(watson):
     for frame in watson.frames:
         click.echo(style('short_id', frame.id))
 
-def isTime(date_time_string):
-    match = re.search("^\d{1,2}:\d{1,2}$", date_time_string)
-    return match != None
-
-def isDateTime(date_time_string):
-    match = re.search("^\d{4}-\d{1,2}-\d{1,2}\s\d{1,2}:\d{1,2}$", date_time_string)
-    return match != None
-
-def getDateTimeToday(time_string):
-    date_today = arrow.now().floor("day")
-    return getMergedDateTime(date_today, time_string)
-
-def getMergedDateTime(date_time, time_string):
-    hours, minutes = time_string.split(":")
-    return date_time.shift(hours=int(hours), minutes=int(minutes))
-
 @cli.command(context_settings={'ignore_unknown_options': True})
 @click.argument('args', nargs=-1)
 @click.option('-f', '--from', 'from_', required=True, 
diff --git a/watson/utils.py b/watson/utils.py
index 97f30ce2..7fa3253a 100644
--- a/watson/utils.py
+++ b/watson/utils.py
@@ -9,6 +9,7 @@
 
 import click
 import arrow
+import re
 
 from .fullmoon import get_last_full_moon
 
@@ -282,3 +283,23 @@ def parse_tags(values_list):
         ))
         for i, w in enumerate(values_list) if w.startswith('+')
     ))))  # pile of pancakes !
+
+
+def isTime(date_time_string):
+    match = re.search("^\d{1,2}:\d{1,2}$", date_time_string)
+    return match != None
+
+
+def isDateTime(date_time_string):
+    match = re.search("^\d{4}-\d{1,2}-\d{1,2}\s\d{1,2}:\d{1,2}$", date_time_string)
+    return match != None
+
+
+def getDateTimeToday(time_string):
+    date_today = arrow.now().floor("day")
+    return getMergedDateTime(date_today, time_string)
+
+
+def getMergedDateTime(date_time, time_string):
+    hours, minutes = time_string.split(":")
+    return date_time.shift(hours=int(hours), minutes=int(minutes))