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Trari › Jeff Geerling
This week on the channel +876K views this week

Jeff Geerling welcomes retirement for the troublesome leap second

His only new upload explains a May 2027 change to UTC and the software headaches it promises to remove.

Channel: Jeff Geerling Story of Trari Newsroom

Why this story? The channel's weekly summary: what went up this week, what is drawing views now, and where the channel stands among similar channels.

REJOICE! NO MORE LEAP SECONDS!REJOICE! NO MORE LEAP SECONDS!

Things we can learn from the video

Press to jump

  1. 1:00Geerling presents the resolution ending UTC leap-second adjustments from May 20, 2027.
  2. 1:38A possible negative leap second creates risks for software that must handle a suddenly missing second.
  3. 2:16Precise timing matters to energy grids, telecommunications and astronomical observations.
  4. 3:25Leap smearing spreads time adjustments out, but differing implementations have complicated synchronization.
  5. 4:29Ending leap seconds also creates challenges for radio timecodes and tracking the difference from Earth's rotational time.

Computers are not especially forgiving when time suddenly gains or loses a second. Jeff Geerling gives that small adjustment a surprisingly substantial farewell in "REJOICE! NO MORE LEAP SECONDS!", his only upload of the week, which has reached about 230,000 views.

Geerling explains that a General Conference on Weights and Measures resolution will end leap-second adjustments to Coordinated Universal Time from May 20, 2027. The prospect of a negative leap second, taking time away rather than adding it, is a particular concern. As he puts it: "Computers hate it when a billion nanoseconds suddenly vanish or appear when they're running."

The consequences stretch beyond an occasionally peculiar clock display. He connects the change to telecommunications, energy grids and astronomical observations, then explains the awkward business of leap smearing: spreading an adjustment out rather than making it all at once. Simpler software is welcome, though radio timecodes and keeping track of Earth's rotation leave further work to do.

Viewers supply their own timekeeping footnotes. One remembers counting the final second twice on New Year's Eve in 2016; others imagine distant administrators wrestling with an accumulated leap hour. Several bring the conversation back to bugs in software that assumes time behaves neatly.

The new explainer is Geerling's busiest video right now. His Formlabs resin-printer test and Radxa Dragon Q8B review also continue drawing views. Across the channel, weekly viewing reached roughly 876,000, while subscribers held steady. Daily viewing is above its usual level, a pattern also seen at nearby-sized bigclivedotcom, while Hardware Unboxed is having a slower day than usual.

Published on Trari

Where next?

More from Jeff GeerlingViews jump 7.6x the channel's usual paceJeff Geerling's "Pi 5 killer" isn't easy to getHis Radxa Dragon Q8B review pairs a promise of faster hardware with less glamorous questions about availability and installing an operating system.Channel: Jeff Geerling · Story of October 12, 2026 Also in Technology reviews and gadgetsSubscriber surge +99,972 subscribers in a dayJerryRigEverything reaches 10.3 million subscribers amid high-profile phone testsZack Nelson's unusually large subscriber gain comes as his recent uploads move from phone teardowns to wheelchair technology and factory life.Channel: JerryRigEverything · Story of November 3, 2026 A different discovery todayVideo taking off 12x its usual first dayFrom "please don't leave" to "ask Grok": John Oliver's midterm tourThe election-week main story drew about 3.8 million views in under a day, and its comment section filled more than twice as fast as usual.Channel: LastWeekTonight · Story of November 3, 2026

What viewers say

  • Aw man, on new years eve 2016 we celebrated the leap second by counting down "5, 4, 3, 2, 1, 1, Happy New Year!!!" I'm a little sad I'll never be able to do that again.
    @youruniquehandle2See it on YouTube
  • I picture people centuries from now when the accumulated seconds reach 3597 seconds and everybody is in a huff about the impending leap-hour event.
    @rogerlevasseur397See it on YouTube
  • I'm going to need a second to process this.
    @Mo_KlonusSee it on YouTube
7 more comments
  • Time as a dimension is already complicated enough but that is nothing compared to the bureaucracy of time.
    @GosuminerSee it on YouTube
  • Y2K38 - also called the Epoch-alypse. That actually caused a bug in one of the software projects I work on. It involves subscriptions and there was a need to create and end-date "in the future" so the PM chose 9000 days - which caused an error in a downstream system running linux.
    @matt_kellySee it on YouTube
  • My chrony instance receiving a leap hour: "You want me to smear WHAT?"
    @HDL_CinC_DragonSee it on YouTube
  • I opened youtube at the right time!
    @9Banda6See it on YouTube
  • "time-smearing was never fun" is the most understated chapter title in tech history
    @LunaLovelaceTechSee it on YouTube
  • i like that the guys who sort out time weren't late, but in fact, early
    @wileysneakSee it on YouTube
  • Almost ready for “Star Date”
    @philipcaldwell3187See it on YouTube

Public comments from the video's page on YouTube

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The videos drawing views on Jeff Geerling right now

Formlabs finally made a cheaper printer692,090 views Qualcomm made a Pi 5 killer. Good luck getting one.1,500,345 views
The facts
Subscribers
1,100,000
Channel views, last 7 days
875,835
Videos published this week
1
Video published
October 30, 2026
Video views so far
231,404
Views on its first day
128,170

The numbers

Here is how Jeff Geerling's week adds up across views, subscribers and uploads.

views gained this week: this channel and similar channels
Digital Doctor
29,584,952
Karl Conrad
3,415,440
The Studio
2,094,713
Hardware Unboxed
1,897,350
iDeviceHelp
1,026,430
bigclivedotcom
993,478
Jeff Geerling
875,835
WULFF DEN
775,185
Hugh Jeffreys
316,974
subscribers
1,100,000
no significant change in the last 7 days
total views
219,875,656
views per day
182,178
typical day: 139,971
first-day views of each video posted this week
REJOICE! NO MORE LEAP SECONDS!
128,170
subscribers: this channel and similar channels
Digital Doctor
1,210,000
Hardware Unboxed
1,170,000
The Studio
1,170,000
bigclivedotcom
1,130,000
Jeff Geerling
1,100,000
iDeviceHelp
1,060,000
Karl Conrad
1,020,000
Hugh Jeffreys
1,010,000
WULFF DEN
989,000
As of November 3, 2026 · Data source: Trari Social News, Trari Traffic Trends and Ranking Platform, Google YouTube
Subscriber, view, like and comment counts are YouTube's. Rates, usual days, rankings, comparisons and categories are Trari's own calculations.
Developed with YouTube

💡 Test your knowledge

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