Rollback deadline calculator
Free · Runs in your browserExample dates are fictional. For an overnight window, enter the next date as the end. Use one fixed UTC offset for the entire window; use UTC if the window crosses a daylight-saving transition.
Window end − rollback duration
− recovery verification buffer
This is arithmetic using your estimates, not approval to proceed or a guarantee of recovery. A failing service check or another agreed stop condition can require rollback earlier.
See what a completed packet looks like
A fictional access-switch replacement, with a step sequence, rollback triggers, and evidence fields. Review it before deciding whether the full kit is useful.
One file for the whole change record.
Build an editable plan, check the timeline, record the result, and hand over a packet your next engineer can read.
- Self-contained HTML planner: opens locally, with no server or API key.
- Five editable scenarios: switch replacement, firewall HA exercise, cellular router replacement, fiber maintenance, and routing change.
- Step owners, verification criteria, rollback procedure, and before/after evidence.
- Save and reopen JSON; export Markdown or print to PDF.
- Field checklist for preparation, execution, and handoff.
Will this touch my network or upload my plan?
No. The calculator processes the values in this browser tab. The offline kit does not connect to devices, run commands, send telemetry, or upload plans. Downloaded plans are not encrypted. Keep secrets out of them and store them appropriately.
Are the scenarios ready-to-run procedures?
No. They are fictional documentation examples with no vendor commands. You must adapt them to the actual environment, verify current vendor instructions, and obtain your normal change approval.
Why pay when a spreadsheet can do the math?
A spreadsheet can calculate the deadline. The kit combines editable steps, ownership, rollback notes, evidence records and exports in one offline file. Try the free calculator and sample packet to judge whether that convenience matters to your work.
What does this site collect?
This page contains no analytics scripts, account signup or data submission form. Values stay in the current browser tab and disappear on reload. The hosting service may process ordinary web access logs. The offline edition makes no network requests.