Free tool · tzdata 2026e

Time-zone data check

Is the time-zone data in your browser, your servers and your containers new enough for 1 November 2026? This page checks your browser right now; ocimend tzcheck checks hosts and containers.

Your browser

Your hosts and containers

curl -fsSL https://ocimend.io/downloads/agent/install.sh | sh
ocimend tzcheck            # system data, JDKs, node, python and Go programs on PATH
ocimend tzcheck /app       # also Go programs in /app
ocimend tzcheck --strict   # exit 1 if a copy in use misses the 2026 changes

Binaries for Linux (amd64, arm64), macOS and Windows are on the agent page, with signed checksums. Inside Kubernetes: kubectl cp ./ocimend POD:/tmp/ocimend then kubectl exec POD -- /tmp/ocimend tzcheck --no-exec /app.

How to check each runtime by hand → What changes on 1 November Check an image online