timestamp sanity check · experiment

Freshness Glass

Paste JSON to find strict ISO timestamps and see their age against one visible reference time. Everything stays in this browser.

JSON

Reference timeStale after (hours)

Only real calendar dates in strict ISO form and valid ISO date-times are recognized. A date alone is shown as a calendar date interpreted at UTC midnight; offset and UTC instants are normalized visibly. “Stale” is a threshold, not an inference about whether a field matters.