Time-contingent triggers allow actions to be performed at certain times.
‘Repeated time’ triggers allow actions to be scheduled multiple times between a start and end point. These times can have fixed intervals (e.g. 10am, 12pm, 2pm, 4pm, 6pm) or can occur at random (e.g. 10.24am, 11.45am, 1.11pm, 3.34pm, 5.09pm). These correspond to classic interval-contingent and signal-contingent sampling schemes.
‘Set time’ triggers allow actions to occur once at pre-specified times. For example, an action could be scheduled at the end of every day, or at users’ personalised meal times.