Does a weekly distance goal reset on Sunday or Monday?
You set a weekly distance goal, walk on Saturday expecting it to add to the week you have been building up all along, and the total is already back at zero. Nothing about the hike itself was wrong. The week just ended a day earlier than you were picturing it, because 'a week' is not one fixed thing â it is a boundary someone drew, and not everyone draws it on the same day.
The short answer
There is no single day a week resets on everywhere. Both a Monday start and a Sunday start are in real, official use depending on where you are, so a weekly total resets on whichever day the calendar behind it treats as day one â not on a day that is universally agreed to be the start of the week.
Why the same seven days split two different ways
The ISO 8601 standard defines the week as starting on Monday and ending on Sunday, and that convention is what most of the world runs its business and school calendars on. In the United States and a handful of other places, the common convention instead starts the week on Sunday, an older layout that goes back to calendars that put the day of rest first rather than last. Neither one is a mistake â they are two different, equally official ways of dividing the same seven days, and which one a person expects is usually just whichever one they grew up seeing on a wall calendar.
Where that setting actually lives
On an iPhone, the first day of the week is part of the Region setting, and it is what the built-in Calendar app and anything else showing a week uses to decide where one ends and the next begins. An app reporting a weekly total is not usually making its own separate decision about this â it is following the same regional convention the rest of the phone already runs on, which is why two people in different countries, both looking at a weekly figure, can have that figure reset on different days of the actual calendar.
What actually changes when the boundary moves
Moving the week boundary by a day changes which bucket a given hike gets counted toward â nothing about the hike itself. Its distance, its moving time, its elevation gain are all fixed the moment you stop recording, worked out from the same GPS points regardless of which day of the week anyone considers day one. A hike recorded late on a Saturday is the one case that actually depends on the convention: under a Sunday-start week it already belongs to the new week, and under a Monday-start week it still belongs to the old one, even though it is the exact same walk with the exact same numbers either way.
Where the confusion usually comes from
- Assuming a weekly total resets on whichever day feels like the start of your own week â that is a habit, not a rule any particular app or calendar is required to follow.
- Comparing a weekly figure between two phones set to different regions, where the same set of hikes can land in different weekly totals purely because the boundary sits on a different day, not because either total is wrong.
- Expecting a Saturday-night hike to always count the same way â it is precisely the walk closest to the boundary, so it is also the one most likely to fall on either side of it depending on the convention in use.
Where TrailCam fits in
TrailCam has an optional weekly distance goal â set a target if you want one, and your recorded hikes count toward it as you go, with badges marking the milestones as your total distance adds up over time. Nothing about a single hike changes depending on where the week boundary falls; it only decides which week that hike is grouped under. TrailCam is free to download.
Questions
- Does my iPhone's Region setting decide which day my weekly total resets on?
- Generally yes â the first day of the week is part of that setting, and anything on the phone that groups totals by week, including the Calendar app itself, follows the same convention rather than making its own separate choice.
- If I never set a weekly goal, does the start-of-week day still matter?
- Only for anything that groups your hikes by week. A single hike's own distance, moving time and elevation gain are unaffected either way, since those are fixed at the point you stop recording, before any weekly grouping happens.
- Why did a late Saturday hike count toward a different week than I expected?
- That is the one hike genuinely on the line. Under a Sunday-start convention it falls into the new week; under a Monday-start convention it is still the old week's last day â the same walk, counted into a different bucket depending on which day is treated as day one.
Recording your own routes
TrailCam is an iPhone app that records your route with GPS, keeps video clips, photos and voice notes pinned to the spot where you took them, and exports the result as GPX 1.1 or CSV. It is free to download.