Change in Mongolian daylight saving time

Hello, Current rule settings for Mongolia in /usr/src/share/zoneinfo/asia is wrong. It should be changed from: ... Rule Mongol 2001 only - Apr 27 2:00s 1:00 S Rule Mongol 2001 only - Sep 28 2:00s 0 - ... To the following: ... Rule Mongol 2001 only - Mar lastSat 2:00s 1:00 S Rule Mongol 2001 only - Sep lastSat 2:00s 0 - ... Daylight saving occurs at 02:00 local time last Saturday of March. It will changes back to normal at 02:00 local time last Saturday of September. Please make appropriate changes. Please let me know if you have any questions. sincerely, Ganbold Ts. Mongolia