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What are my
key deadlines?

Workplace disputes often turn on short time limits — Acas early conciliation, tribunal filing windows and stage dates. Know which clocks may be running before options close.

Check your deadlines →Which clocks matter

One-off purchase · Yours to keep · Account required

When something goes wrong at work, people focus on fairness. Tribunals also ask whether a claim was brought in time. That clock can run while you are still gathering courage, documents or advice.

Finding the relevant dates early is one of the highest-leverage things you can do — even if you are not ready to file anything yet.

01

Pressure

Most people underestimate how short the window is

Day 0Claim window often hereHearing
Internal processAcas pauseET1 deadline

Waiting for an internal appeal to finish does not always stop the tribunal clock. That surprise closes claims every year.

02

Snapshot

What people usually need to know first

3m−1d

Common ET window

Many claim types

6 wks

Acas max

Conciliation period

28 days

ET3 response

From service

42 days

Appeal (EAT)

From judgment sent

Typical windows · exact dates depend on your facts · not legal advice

Acas, tribunal filing, internal policy dates and later case management directions are different systems. Missing one is enough to create serious risk — even if you are “still talking” to your employer.

Acas early conciliation

Up to 6 weeks

Tribunal claim window

Often 3 months − 1 day

Internal grievance / appeal

Policy-driven

Case management / hearing

Tribunal directions

  1. 01

    Relevant date

    Dismissal, act, or last in a series

  2. 02

    Acas Day A → Day B

    Notification can pause the claim clock

  3. 03

    ET1 presentation

    Claim must usually be in by the calculated date

  4. 04

    Directions & hearing

    New clocks once the claim is live

The deadlines tool works from your dates through Acas and tribunal time limits. Case Hub keeps those dates next to documents and evidence so the next deadline is never buried in email.

01

Tool output

What the deadlines check shows

Acas window

When to notify · certificate timing

ET1 deadline

Calculated from your relevant date

Day A / Day B

How the pause is applied

Specimen calculation UI · live tool uses your dates

Deadlines toolCalculate Acas and tribunal time limits — extensions and Day A / Day B included.Open →Deadlines guidePlain-language explainer of workplace time limits and what often goes wrong.Open →
  1. 01Account

    Create an account

    Save the dates you already know — dismissal, last day, incident dates — so calculations start from real facts.

    Key dates

    Dismissal12 Mar 2026
    Acas Day A— calculate
  2. 02Dates

    Enter the key dates

    The deadlines tool walks through Acas and tribunal time limits, including Day A / Day B where relevant.

    Deadlines tool

    Tribunal window

    3 months − 1 day

  3. 03Track

    Keep the clocks visible

    Case Hub keeps deadlines alongside documents and evidence as the dispute develops.

    Case Hub

    Acas certificate due
    ET1 window
    ET3 response

Calculations help you check dates — not a guarantee you are in time

Know which clocks may be running

Enter the dates you have, calculate the limits that may apply, and keep them with the rest of your case.

Open deadlines tool →See Case Hub

Calculations help you check dates — they are not a guarantee you are in time. Not legal advice.