In an initiative to provide facility to the passengers to plan their journey in advance, the Railways has decided to allow passengers to book their train tickets 120 days before from existing 90 days. The facility will come to effect from today. According to an official release, however there will be no change in case of certain day time express trains where lower time limits for advance reservations are at present in force. There will also be no change in case of the limit of 360 days for foreign tourist.