I would like to book high speed line train tickets for 28th December and 29th December but I do not see any trains in your booking system since 27th December. Are those trains canceled or should I wait some more days for opening these trains in your booking system?
Let me first note that Rail Turkey does not belong to TCDD Tasimacilik. So it’s not our booking system. 🙂
Normally you can find high speed train tickets 15 days prior to your travel date. But TCDD Tasimacilik had announced that timetables will be valid until 27th of December, and has not announced the following timetable yet. See more details about timetable changes at https://travel.railturkey.org/2017/12/07/new-timetable-for-hsts-in-december/