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time

Last Week on My Mac: Big Sur’s broken clock

When a “fixed” formatting string proves anything but fixed, then breaks without warning or even mention in a release note.

April 11, 2021 Macs, Technology

Big Sur has changed how macOS formats time

How Apple made changes to Foundation routines which format dates and times which can break their formatting when in 12-hour clock mode.

April 8, 2021 Macs, Technology

How Rosetta complicates call chains on M1 Macs

Two basic rules: M1 Macs run Arm-native code when it’s available, but won’t mix ARM-native and Intel code in the same process. Here are the details.

January 27, 2021 Macs, Technology

Inside M1 Macs: Time and logs

Time has changed in M1 Macs, with the Mach clock ticking every 41.67 nanoseconds. This affects all log entries too, and works differently in Rosetta.

November 27, 2020 Macs, Technology

Mints now tells you the (Mach absolute) time

T T Read More

New version of Mints tells you the scaling factors required to convert raw Mach absolute time values to nanoseconds, which change on Apple Silicon Macs.

September 15, 2020 Macs, Technology, Updates

Changing the clock in Apple Silicon Macs

Since we switched to Intel Macs, Mach precision time has ticked away in nanoseconds. That’s won’t be true in Apple Silicon Macs, and could have strange results.

September 8, 2020 Macs, Technology

Gods of the Week: Chronos and Aion (Time)

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Father Time, a grey-haired old man with a beard, wearing ultramarine blue, and holding a scythe and hourglass.

May 5, 2020 General, Life, Painting

Last Week on My Mac: When time fails you

Why couldn’t a user specify times before 0100 and after 1300, when the DatePicker worked fine using the 24-hour clock?

January 12, 2020 Macs, Technology

What’s the time, Mr Mac? How summer time confuses macOS

When you find one, bugs will necessarily be multiple. If you think you’ve found one, you can be fairly confident that you’ll find more. Four bugs in macOS for the price of one.

November 1, 2019 Macs, Technology

Taking macOS to the end of time: nanoseconds count

Picking the right time system for the purpose is critical when you want to analyse very short periods. Sometimes it takes time to discover how to juggle with time.

August 20, 2018 Macs, Technology

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