When a trigger fires, it synchronously runs all matching trigger events, in the order they appear in the event sheet.
It doesn't really make a lot of sense to ask when triggers happen in a tick, because they run separately to ticks. For example they can fire multiple times during or in between ticks, or not at all. I guess the important thing is that it doesn't run anything else in between different trigger events for the same trigger. Is that what you're asking? It's useful to provide some context about why you need to know so I can address that.