--- a/sat/tools/common/date_utils.py	Sat Feb 02 01:05:25 2019 +0100
+++ b/sat/tools/common/date_utils.py	Sat Feb 02 01:12:54 2019 +0100
@@ -22,8 +22,7 @@
 from sat.core.constants import Const as C
 from sat.core.i18n import _
 import datetime
-import dateutil
-from dateutil import tz
+from dateutil import tz, parser
 from dateutil.relativedelta import relativedelta
 from dateutil.utils import default_tzinfo
 from babel import dates
@@ -42,21 +41,21 @@
 def date_parse(value, default_tz=TZ_UTC):
     """Parse a date and return corresponding unix timestamp
 
-    @param value(unicode): date to parse, in any format supported by dateutil.parser
+    @param value(unicode): date to parse, in any format supported by parser
     @param default_tz(datetime.tzinfo): default timezone
     @return (int): timestamp
     """
-    dt = default_tzinfo(dateutil.parser.parse(unicode(value), dayfirst=True), default_tz)
+    dt = default_tzinfo(parser.parse(unicode(value), dayfirst=True), default_tz)
     return calendar.timegm(dt.utctimetuple())
 
 def date_parse_ext(value, default_tz=TZ_UTC):
     """Extended date parse which accept relative date
 
-    @param value(unicode): date to parse, in any format supported by dateutil.parser
+    @param value(unicode): date to parse, in any format supported by parser
         and with the hability to specify X days/weeks/months/years in the past or future.
         Relative date are specified either with something like `[main_date] +1 week`
         or with something like `3 days ago`, and it is case insensitive. [main_date] is
-        a date parsable by dateutil.parser, or empty to specify current date/time.
+        a date parsable by parser, or empty to specify current date/time.
         "now" can also be used to specify current date/time.
     @param default_tz(datetime.tzinfo): same as for date_parse
     @return (int): timestamp
@@ -78,7 +77,7 @@
     if not date or date == u"now":
         dt = datetime.datetime.now(tz.tzutc())
     else:
-        dt = default_tzinfo(dateutil.parser.parse(date, dayfirst=True))
+        dt = default_tzinfo(parser.parse(date, dayfirst=True))
 
     quantity = int(m.group(u"quantity"))
     key = m.group(u"unit").lower() + u"s"