Here's When You Can Download iOS 15.4, iPadOS 15.4, and macOS Monterey 12.3 With Universal Control

As announced at Apple's "Peek Performance" media event on March 8, the public release of iOS 15.4, iPadOS 15.4, and macOS 12.3 is set to take place this week. Keep reading to learn when they are likely to become available to download in your time zone.

iOS 15
Many users have been eagerly awaiting iOS 15.4, which adds several new features, such as an option to use Face ID while wearing a mask (iPhone 12 and later), 37 new emoji characters, and support for the new "Tap to Pay on ‌iPhone‌" feature that allows NFC-compatible iPhones to accept payments through Apple Pay.

Meanwhile, iPadOS 15.4 and macOS 12.3 are set to make Universal Control available to the general public for the first time, allowing multiple Macs and iPads to be controlled with the same mouse/trackpad and keyboard. Also set to be made available to the general public for the first time are watchOS 8.5 and tvOS 15.4.

universal control wwdc
Apple has said the updates will arrive sometime between March 14 and March 18, and while we don't know the specific day when these updates will drop, Apple typically releases major new versions of its operating systems between Monday and Wednesday.

Regardless of the day they arrive, Apple's OS updates tend to come out around 10:00 a.m. Pacific Time. There are no guarantees Apple will stick to its usual release timing, but that seems to be a pretty reasonable guess, so we've put together this list of corresponding times around the world:

  • Honolulu, Hawaii — 7:00 a.m. HST
  • Anchorage, Alaska — 9:00 a.m. AKDT
  • Cupertino, California — 10:00 a.m. PDT
  • Phoenix, Arizona — 10:00 a.m. MST
  • Vancouver, Canada — 10:00 a.m. PDT
  • Denver, Colorado — 11:00 a.m. MDT
  • Dallas, Texas — 12:00 noon CDT
  • New York, New York — 1:00 p.m. EDT
  • Toronto, Canada — 1:00 p.m. EDT
  • Halifax, Canada — 2:00 p.m. ADT
  • Rio de Janeiro, Brazil — 2:00 p.m. BRT
  • London, United Kingdom — 5:00 p.m. GMT
  • Berlin, Germany — 6:00 p.m. CET
  • Paris, France — 6:00 p.m. CET
  • Cape Town, South Africa — 7:00 p.m. SAST
  • Helsinki, Finland — 7:00 p.m. EET
  • Istanbul, Turkey — 8:00 p.m. TRT
  • Dubai, United Arab Emirates — 9:00 p.m. GST
  • Delhi, India — 10:30 p.m. IST
  • Jakarta, Indonesia — 12:00 a.m. WIB next day
  • Shanghai, China — 1:00 a.m. CST next day
  • Singapore — 1:00 a.m. SGT next day
  • Perth, Australia — 1:00 a.m. AWST next day
  • Hong Kong — 1:00 a.m. HKT next day
  • Seoul, South Korea — 2:00 a.m. KST next day
  • Tokyo, Japan — 2:00 a.m. JST next day
  • Adelaide, Australia — 3:30 a.m. ACDT next day
  • Sydney, Australia — 4:00 a.m. AEDT next day
  • Auckland, New Zealand — 6:00 a.m. NZDT next day

For more on ‌macOS Monterey‌, make sure to check out our dedicated roundup and separate guide to Universal Control. For a complete overview of all of the features that are available in iOS 15, we also have a dedicated iOS 15 roundup.

Related Forums: iOS 15, macOS Monterey

Popular Stories

Apple Watch Ultra Night Mode Screen

Apple Watch Ultra 3 Launching Later This Year With Two Key Upgrades

Wednesday July 2, 2025 1:13 pm PDT by
The long wait for an Apple Watch Ultra 3 appears to be nearly over, and it is rumored to feature both satellite connectivity and 5G support. Apple Watch Ultra's existing Night Mode In his latest Power On newsletter, Bloomberg's Mark Gurman said that the Apple Watch Ultra 3 is on track to launch this year with "significant" new features, including satellite connectivity, which would let you...
iPhone 17 Pro in Hand Feature Lowgo

iPhone 17 Pro Coming Soon With These 14 New Features

Friday July 4, 2025 1:05 pm PDT by
Apple's next-generation iPhone 17 Pro and iPhone 17 Pro Max are just over two months away, and there are plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models. Latest Rumors These rumors surfaced in June and July:Apple logo repositioned: Apple's logo may have a lower position on the back of the iPhone 17 Pro models, compared to previous...
iPhone 17 Pro in Hand Feature Lowgo

iPhone 17 Pro Max Battery Capacity Leaked

Thursday July 3, 2025 5:40 am PDT by
The iPhone 17 Pro Max will feature the biggest ever battery in an iPhone, according to the Weibo leaker known as "Instant Digital." In a new post, the leaker listed the battery capacities of the iPhone 11 Pro Max through to the iPhone 16 Pro Max, and added that the iPhone 17 Pro Max will feature a battery capacity of 5,000mAh: iPhone 11 Pro Max: 3,969mAh iPhone 12 Pro Max: 3,687mAh...
airpods pro 2

AirPods Pro 3 to Help Maintain Apple's Place in Earbud Market Amid Increasing Low-Cost Competition

Thursday July 3, 2025 7:25 am PDT by
Apple's position as the dominant force in the global true wireless stereo (TWS) earbud market is expected to continue through 2025, according to Counterpoint Research. The forecast outlines a 3% year-over-year increase in global TWS unit shipments for 2025, signaling a transition from rapid growth to a more mature phase for the category. While Apple is set to remain the leading brand by...
apple silicon mac lineup 2024 feature purple m5

Apple's Upcoming Macs Listed in New Report

Thursday July 3, 2025 9:09 am PDT by
AppleInsider's Marko Zivkovic today shared a list of alleged identifiers for future Mac models, which should roll out over the next year or so. The report does not reveal anything too surprising, but it does serve as further evidence that Apple is seemingly working on new models of every Mac, including the MacBook Air, MacBook Pro, iMac, Mac mini, Mac Studio, and Mac Pro. Apple is...
iPhone 17 Pro Lower Logo Magsafe

iPhone 17 Pro's New MagSafe Design Revealed in Leaked Photo

Wednesday July 2, 2025 8:37 am PDT by
The upcoming iPhone 17 Pro and iPhone 17 Pro Max are rumored to have a slightly different MagSafe magnet layout compared to existing iPhone models, and a leaked photo has offered a closer look at the supposed new design. The leaker Majin Bu today shared a photo of alleged MagSafe magnet arrays for third-party iPhone 17 Pro cases. On existing iPhone models with MagSafe, the magnets form a...

Top Rated Comments

roncron Avatar
43 months ago
Title should be "We don't know which day you can download iOS 15.4..."
Score: 23 Votes (Like | Disagree)
SvenLorenz1975 Avatar
43 months ago
Just make sure to post the "IT'S OUT NOW! START DOWNLOADING NOW!" article half an hour before it's actually released, as always. It would feel weird if you didn't.
Score: 8 Votes (Like | Disagree)
Phogro Avatar
43 months ago
In recent memory most final releases have been Monday right? Hoping for today.
Score: 6 Votes (Like | Disagree)
alecgold Avatar
43 months ago
Universal control is really, really great!

Edit: I've tested it on a my (not primary) MacBook Pro 13" and my M1 iPP 11".
It's really smooth, seamless and "it just works"
Score: 5 Votes (Like | Disagree)
grmatt Avatar
43 months ago

Universal control is really, really great!
This is what I'm looking forward to most. ??
Score: 4 Votes (Like | Disagree)
Porco Avatar
43 months ago
I’ve been looking forward to this. Mainly for the FaceID-while-wearing-a-mask option on my iPhone.
Score: 2 Votes (Like | Disagree)