When Is 01:00 Utc 27/02?

[bednobs]

i think it's 1 o clock tonight - is that right?>

[Buenchico]

Yup1

[cashier]

Yes 1 am

[Buenchico]

^^^ My exclamation mark has become a '1'.

I must be getting so weak in my old age that I can't even hold the Shift key down ;-)

[gingejbee]

Well I'd say that it's one o'clock tomorrow morning...

[Buenchico]

. . . but that's because you're a pedant, Gingejbee ;-)

[sanmac]

Are GMT and UTC the same?

[gingejbee]

yes, Chris, I'll admit it...it's my scientific background that makes me so.

[Tilly2]

What's happening at 1.00 am Bednobs?

[sanmac]

Shouldn't it be notated using the 24 hr system as 0100 rather than 1am?

[Buenchico]

>>> Are GMT and UTC the same?

We're back to pedantry again! A pedant would say (correctly) that they're not exactly the same but, for all practical purposes, they are anyway:
https://www.timeanddate.com/time/gmt-utc-time.html

[Prudie]

Interesting, I have never ever heard of UTC or seen it referred to before.

[bednobs]

it's a fb event i wanted to watch with my daughter :(

[237SJ]

UTC is used in airline systems (internally)

[sanmac]

Thanks, Buenchico. Another point: When I was in the air cadets many years ago we were introduced to the 24 hour system without the use of a colon. For example 1400 was not 14:00. I notice that AB uses the colon in reporting the times of posts.

[Prudie]

Sanmac I work in defence and never use the colon when writing times for meetings etc etc but do notice a lot will put 17:30 for example where I use 1730 hrs.

[Buenchico]

The colon form, Sanmac, is useful in that it can be extended to include seconds. e.g. 20:47:31

It also makes leading zeros optional. e.g. 01:30 = 1:30

However the military tend to omit the colon. It's also frequently omitted when times are handwritten. For example, when running a railway station, I has to enter the arrival and departure times of all trains onto a record sheet. Neither I, nor my colleagues, ever wasted time by including colons in our reports.

[Buenchico]

I notice that Prudie has added 'hours' to a time above. If I recall correctly, the British army has always done that (e.g. "The exercise will commence at 0200 hours") whereas the Royal Navy has never done so. (e.g. the exercise will commence at 0200"). I think, but I'm not sure, that RAF has followed the naval pattern.

When speaking 24-hour times, rather than when writing them down, there are also disagreements about whether a leading '0' should be referred to as 'oh' or 'zero' and whether 'on the hour' times should be referred to as 'hundred' or 'double zero'. Some times just don't sound right anyway. For example, when using the station PA system, I never referred to either the 'oh-oh-forty-two' departure or the 'zero-zero-forty-two' departure. 'Midnight forty-two' sounded much better to me!

[sanmac]

That's what I thought, the colon is really superfluous in noting time using the 24hr system; however, obviously in the rare case in which you wish to include seconds, it is necessary to use the colon.