diff --git a/README b/README
index bde371a..9b4286c 100644
--- a/README
+++ b/README
@@ -4,8 +4,8 @@ This library contains next public exported methods:
 * local_to_utc(DateTime, Timezone) - converts local time to UTC
 * local_to_local(DateTime, TimezoneFrom, TimezoneTo) - converts local time to local
 * tz_name(DateTime, Timezone) - returns a timezone name (E.g. MSK, MSD, etc)
-* tz_shift(DateTime, Timezone) - returns shift from local datetime to GMT
-* tz_shift(DateTime, TimezoneFrom, TimezoneTo) - returns shift from local datetime to required timezone
+* tz_shift(DateTime, Timezone) - returns time difference between local datetime and GMT
+* tz_shift(DateTime, TimezoneFrom, TimezoneTo) - returns time difference between local datetime and required timezone
 Where
 DateTime = {date(), time()}
 TimeZone(To, From) = String(). E.g. “Europe/Moscow”, “America/NewYork”. Or abbreviations "MSK", "MSD", etc. Note: