641 – What’s the Time, Mr Wolf?

Posted on July 29, 2022 (Updated July 29, 2022) by ewand

Time-telling technology has always been a hot-bed of invention, from the radically precise first marine chronometer in the early 18^th century, allowing more accurate navigation on long sea voyages, to atomic clocks that can measure time with the accuracy of one millionth of a second over 10 years.

Computers and smart phones probably never need your intervention to set the time, except when travelling abroad and you want to manually manage the time zone – if you prefer not to let the machine do that for you. To play with the time settings in Windows, just right-click on the clock in the system tray and choose to adjust from there.

If you’d like to know what the actual time is, maybe after a power cut has blanked the clock on your cooker or you need to adjust because of Daylight Savings Time, how do you know what the real time is? Call the Speaking Clock? Switch on TV news and wait for the clock in the corner to click over one more minute?

Even better than that, check out time.is, a service synchronized with an atomic clock and which purports to figure out how accurate your computer’s clock is compared with the real time. Open the time.is site on your mobile phone and you’re ready for next time you have to set the clock on your video recorder or bedside alarm.

The chronometer (“time” and “measure”) evolved from a ship’s device for navigation and became a byword for a really accurate watch (they even had competitions until the late 1960s for the manufacturer who could make the most accurate timepiece – right up until the Japanese started beating the organising Swiss at their own game, so they took their ball away and went home). Meanwhile chronographs (“time” and “write”) were devices made to accurately measure time gone by, such as at the request of France’s King Louis XVIII, who wanted to know exactly how long his horse races lasted. Early devices actually marked the passage of time on the dial with a pen.

In Windows, you can easily time events or have countdown timers that alert you when your eggs are boiled or it’s time to start working again – look in the Swiss Army Knife that is the Clock app. You can display multiple timers in one window if necessary, make a single timer go full screen (useful if you’re presenting and counting down to getting started) or pop out to a side window.

If you wear an old-fashioned watch, you may have a simple way to measure elapsed time – some will have built-in timers, and others will have a moveable bezel which lets you rotate the zero-marker to where the minute hand is pointing at the start of something you want to time.

If you look at the watch a few minutes from now, you’ll see how many markers on the bezel the minute hand has moved on by – not exactly sub-second accurate but it’s good enough for the “about 10 minutes” type measurement.

You could also reverse the process and set the bezel’s 50 minute marker at the minute hand, so counting down 10 minutes towards the zero marker instead. You do need to keep an eye on it as there’s no alarm.

Contemporary chronographs are analogue watches with built-in stopwatch functions, usually controlled by start and stop buttons on the side. They may count to fractions of a second marked around the edge, and some sport Tachymetre marking around the outside – designed to let you calculate how fast something is travelling as it goes over a set distance, or how far you’ve travelled if you know your constant speed.

It’s hardly red-hot technology, but millions of watches have this fantastically complicated but nowadays basically useless feature. They have to sell wrist furniture somehow.

Perhaps the most over-sold and fantastically-named wrist watch from the 1960s was the now re-issued Croton Nivada Grenchen Chronomaster Aviator Sea Diver – a single device that could be used for so many things as it combined various chronograph and bezel-rotating features in one 38mm-wide watch, billed as a “wrist-sized computer”.

Just make sure you have a magnifying glass handy to be able to read all the tiny markers and numbers on it.

574 – Teams Times Countdown

Posted on April 1, 2021 (Updated April 16, 2021) by ewand

As many of us have spent the last year meeting people through Teams instead of in person, our methods and behaviours may have altered. Most people stopped getting dressed up as if they were going to work, though some found that after months of wearing jogging pants and hoodies, actually getting smartened up helped them get into “Work Mode”. There’s even the idea of having a virtual commute to separate work life from home life.

To avoid back-to-back meetings all the time, some organizations mandate that meetings start at 5 or 10 minutes past the hour. A quick way to achieve this goal is to use the option in Outlook to either start late or finish early, maybe adopting the idea of a 22-minute meeting in place of a default half hour.

One of the many small but neat features that has been added to Teams during its unprecedented rise in use over the last year, is the 5-minute warning. Maybe the next improvement could be a countdown timer for the last 2 minutes, and the meeting organizer have the option to boot everyone out at the allotted end time, so there’s no doubt in anyone’s mind about when to shut up and close the meeting down.

If you’re running a meeting, you could manually start a countdown – rather than using the iconic sequence from the popular British tea-time quiz or the puppetry launch, try showing a timer from the built-in Windows Alarms & Clock application, as featured previously.

When you create a Timer, give it a name and the starting point of the countdown, and when you set the timer running, it will show the time left, the end time, and it will also display a moving indicator to illustrate the remaining duration.

Clicking the double-arrow on the top right will make the timer fill the whole Alarms & Clock app, and you could even make that app full screen if need be.

It’s possible to have multiple timers running simultaneously – you could set one for the duration of the meeting, then line up timers for each point on the agenda, though you do need to start them manually.

If you wanted to be particularly passive aggressive, you could share the application within the Teams meeting (rather than sharing your whole desktop, just share that single window), then every attendee would see it in place of any other shared content – which could be useful in helping to close things down.

A more gentle use of this technique would be if you’re going to allow attendees a couple of minutes to join before getting started – so you’d start and share the timer and then people will know that it’ll get underway at 2 minutes past the hour. If you’re hosting a long meeting with breaks scheduled, the same could be used to indicate when proceedings are going to resume.

551 – Ticking away the moments

Posted on October 9, 2020 by ewand

Keeping track of time is ever-present in our normal working lives, all the more so during These Difficult Times™, and the subject has featured in many ToW’s passim.

There’s a great little app built-in to Windows 10 called Alarms & Clock, which lets you set alarms on your PC, show a world map with multiple locations / time zones displayed, and also provides a neat countdown or count-up timer.

Using the timer function can be pretty handy if you’re speaking as part of an online meeting, and need to keep a check on how long you have left to go.

You can create multiple separately-controlled timers with different durations & names; so you could have an overall meeting countdown timer, and then a separate one for each participant, if you were acting as the time cop to keep everyone else in line.

The Stopwatch is simply a fast-running counter of elapsed time, and by using the icon on either Timer or Stopwatch screens, you can easily fill the display to help focus on the elapsed or remaining time. Handy if you’re in a physical meeting (remember them?) and are able to display a laptop screen showing the time for everyone.

Those of us who still wear physical, mechanical wristwatches may be passingly familiar with a few features that have existed for decades to achieve the same kind of function, albeit more for individual rather than shared use.

Diver bezel

So called “diver” watches were popularised in the 1960s and 70s, as tough, waterproof and utilitarian. The most striking feature of any dive watch is generally the rotating numbered bezel which goes around the outside.

The simple idea was that when you entered the water (knowing you might have 20 minutes of air), you would turn the bezel so the arrow / zero marker was set to where the minute hand was at that point – meaning a later glance at the watch will tell you how many minutes have passed since.

Lots of other non-dive watches also have rotating bezels or indicators, and can be useful for things other than scuba – when the activity above started at 5 minutes to 10, the bezel was set, and it’s easy to see in a trice that was 11 or 12 minutes ago. Not sub-second accurate, but it’s a simple way to mark the passing of time.

Tachymetre /Tachymeter

Many chronograph watches – which combine the function of a stopwatch and a regular timepiece – have a Tachymetre scale around the outside, yet most people these days will have no clue what it’s for. The basic function of the watch is that pusher buttons on the side will start and stop the movement of the chronograph hand which ticks round to indicate elapsed time.

The deal with the TACHY scale is that if you know a distance – the length of a straight on a motor-racing track, for example – and you time something going over that distance, then you can quickly calculate its speed across the ground.

In practice this is easier said than done, since the TACHY scale reads how many of the <distance> would be covered in an hour at this speed. If the measured distance was exactly 1km or 1mile then it’s an easy calculation – if it took 12 seconds to cover 1km, that would equate to 5km per minute or 300km/h. If the measured distance was a fraction – let’s say the length of the 12-second straight was 150m – then the calculation would be 300 x 150m per hour, or 45km/h. By the time you’ve done that in your head, the subject will be half a lap further on…

Another variant on the theme would be if you know the speed – e.g. you’re in a plane with inflight map display, or passenger in a car on cruise control on the motorway – then you could use the Tachymeter to calculate distance travelled.

If you were cruising at 120km/h, and started the timer, then stopped it when it reached 120 on the scale… (after 30 seconds) – then you know you will have travelled 1km in that time.

Yes, there probably are hundreds of times a month when you need to know exactly this.

Pulsations

Slightly more useful to the average person, some chronographs have a Pulsations bezel rather than a Tachymeter scale, or maybe even have both (since the Tachymeter would typically be used for more than 15 seconds, it’s possible to have one quarter of the bezel represent pulsations and the rest of it be a Tachy).

Watches with Pulsations bezels are sometimes nicknamed “Doctors’ watches” as the utility is to help count a patient’s pulse – the method being you start the chronograph, count 15 pulses and the corresponding number on the bezel would tell you what the pulse/minute rate is.

Smart watches, eh, who needs them when you have space-age timing technology like this?