calendar
mark the date of the birthday on mark the date to redo the event mark the time mark the trip on mark time to exercise mark today as first day sober mark visit time note down the interview pick their dates to attend point out the dates PersonX gets now put an appointment on record the appointment remember appointment remind them of date of consultation save the date schedule more time schedule the trip see birthday see date to meet friends see there is an appointment see when they are free select dates serve as a reminder