On August 21 2026, Call of Duty: Modern Warfare 4 will debut its Early Access Beta, launching at 11 AM Pacific Time (2 PM Eastern).
Players who have pre‑ordered the Standard or Vault editions automatically receive a beta code via e‑mail, while a Discord Nitro subscriber can obtain an exclusive access key through Activision’s partnership with Discord.
Activision has already begun preloading the first weekend for all platforms except Nintendo Switch 2.
Beta Start Times by Region
- US West – 11:00 AM (PDT)
- US East – 02:00 PM (EDT)
- Brazil – 03:00 PM (BRT)
- UK – 07:00 PM (BST)
- Germany – 08:00 PM (CEST)
- France – 08:00 PM (CEST)
- South Africa – 08:00 PM (SAST)
- Turkey – 09:00 PM (TRT)
- Russia – 09:00 PM (MSK)
- UAE – 10:00 PM (GST)
- India – 11:30 PM (IST)
- Singapore – 02:00 AM (SGT) on August 22
- Philippines – 02:00 AM (PST)
- China – 02:00 AM (CST)
- South Korea – 03:00 AM (KST)
- Japan – 03:00 AM (JST)
- Australia – 04:00 AM (AEST)
- New Zealand – 06:00 AM (NZST)
A live countdown timer is available on Activision’s page to track the exact moment each time zone enters beta mode. The event will run until August 25 on every platform, excluding Switch 2.
Following the beta, the Public Open Beta will open on August 28 2026, commencing at 10 AM PT (1 PM ET) and concluding on September 1. This phase is open to all players, no pre‑order or code required.
Open Beta Start Times by Region
- US West – 10:00 AM (PDT) on August 28
- US East – 01:00 PM (EDT)
- Brazil – 02:00 PM (BRT)
- UK – 06:00 PM (BST)
- Germany – 07:00 PM (CEST)
- France – 07:00 PM (CEST)
- South Africa – 07:00 PM (SAST)
- Turkey – 08:00 PM (TRT)
- Russia – 08:00 PM (MSK)
- UAE – 09:00 PM (GST)
- India – 10:30 PM (IST)
- Singapore – 01:00 AM (SGT) on August 29
- Philippines – 01:00 AM (PST)
- China – 01:00 AM (CST)
- South Korea – 02:00 AM (KST)
- Japan – 02:00 AM (JST)
- Australia – 03:00 AM (AEST)
- New Zealand – 05:00 AM (NZST)
Another countdown timer honors the Open Beta launch, allowing players worldwide to align their schedules. Release dates span every major region, ensuring simultaneous engagement.
Activision’s clear schedule sets the stage: Early Access grants a rushed glimpse for loyal buyers, while the public Open Beta invites fresh faces to test the new mechanics. Both phases, outlined by precise regional clocks, deliver a structured experience for the community.
Image Credit: Activision

