What each photo knows: its own moment and place

A memory has one date and place — the headline the writer chooses. But a memory of that summer at the lake can hold photos from three different days. Each photo keeps its own facts, read from the file when it's uploaded:

• when it was taken, from the camera's clock;
• where, as a town — the exact coordinates are removed. See Places and the map.

On the memory's page the line under the photos follows the photo you're looking at: Taken June 14, 1974 at 6:42 p.m. · Muskoka. The hour is the camera's own clock, read as it was written — never shifted to your time zone — and a bare date (a scan, an exact midnight) shows no hour at all. Tap the date or the place to see the page's other memories from then, or from there.

When the camera was wrong

A scanner stamps the day it scanned; a phone can be on the wrong date. Whoever may caption a photo — its author, or a manager — finds Edit when it was taken beside Edit caption: one date-and-time field, and Clear to take the line away so the memory's own date speaks again. The place a photo carries isn't edited by hand. Nothing here is shown as a caption; if a photo carries no facts, the memory's own date and place stand.