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wycats's profile
Yehuda Katz 🥨
Yehuda Katz 🥨
Yehuda Katz  🥨
Verified account
@wycats

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Yehuda Katz  🥨Verified account

@wycats

Tilde Co-Founder, OSS enthusiast and world traveler.

Portland, OR
yehudakatz.com
Joined August 2007

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    Yehuda Katz  🥨‏Verified account @wycats 10 Oct 2014

    Protip: seconds, minutes and hours always have the same number of nanoseconds. Days, weeks, months, etc. do not.

    5:14 PM - 10 Oct 2014
    • 9 Retweets
    • 25 Likes
    • Jake Russo 👹 Tibor Szolár Mohnish Thallavajhula Francesco Canessa HGPA wesruv 💻🐕 Dennis Dashkevich Hemanth.HM Daniel Jackoway
    12 replies 9 retweets 25 likes
      1. New conversation
      2. percyhanna‏ @percyhanna 10 Oct 2014
        Replying to @wycats

        @wycats What about time zone changes that are not a full hour? Would that apply in your use case?

        1 reply 0 retweets 0 likes
      3. Yehuda Katz  🥨‏Verified account @wycats 10 Oct 2014
        Replying to @percyhanna

        @percyhanna "1 hour" is "1 hour" regardless of time zone changes for most people. "1 day" is actually ambiguous. "1 hour from now" ambiguous

        0 replies 0 retweets 1 like
      4. End of conversation
      1. New conversation
      2. Michael Koziarski‏ @nzkoz 10 Oct 2014
        Replying to @wycats

        @wycats leap seconds bro

        3 replies 0 retweets 1 like
      3. Yehuda Katz  🥨‏Verified account @wycats 10 Oct 2014
        Replying to @nzkoz

        @nzkoz I was being pretty pedantic. When people say 1.minute, they mean the same thing every time. 1.week… unknown.

        0 replies 0 retweets 0 likes
      4. End of conversation
      1. New conversation
      2. Cole‏ @colemickens 10 Oct 2014
        Replying to @wycats

        @wycats according to a standard or...? I remember you working on that date time lib for rust ages back.

        1 reply 0 retweets 0 likes
      3. Yehuda Katz  🥨‏Verified account @wycats 10 Oct 2014
        Replying to @colemickens

        @colemickens According to reality :) Leap seconds!

        0 replies 0 retweets 1 like
      4. End of conversation
      1. New conversation
      2. Chris Morgan‏ @__chrismorgan 10 Oct 2014
        Replying to @wycats

        @wycats But a minute can have 61 seconds due to leap-seconds (hence the possible seconds range of 0–60 rather than 0–59).

        2 replies 0 retweets 0 likes
      3. Yehuda Katz  🥨‏Verified account @wycats 10 Oct 2014
        Replying to @__chrismorgan

        @__chrismorgan I'm being a bit pedantic I think. When people do Duration::minutes(1), they mean 60s. ::weeks()… unknown

        0 replies 0 retweets 0 likes
      4. End of conversation
      1. New conversation
      2. Aaron Suggs‏ @ktheory 10 Oct 2014
        Replying to @wycats

        @wycats what about leap seconds? They can make minutes, hours, etc longer. http://en.m.wikipedia.org/wiki/Leap_second …

        1 reply 0 retweets 0 likes
      3. Yehuda Katz  🥨‏Verified account @wycats 10 Oct 2014
        Replying to @ktheory

        @ktheory Leap seconds can't make "1 hour" longer. They make "1 day" have an unknown number of seconds.

        0 replies 0 retweets 0 likes
      4. End of conversation
      1. New conversation
      2. Ryan Plans ExtraLife‏ @RyanTablada 10 Oct 2014
        Replying to @wycats

        @wycats I'm trying to remember why not days?

        1 reply 0 retweets 0 likes
      3. Yehuda Katz  🥨‏Verified account @wycats 10 Oct 2014
        Replying to @RyanTablada

        @ryantablada Leap seconds.

        0 replies 0 retweets 0 likes
      4. End of conversation
      1. New conversation
      2. Ethan Gunderson‏ @ethangunderson 10 Oct 2014
        Replying to @wycats

        @wycats Leap seconds change seconds/minutes/hours.

        1 reply 0 retweets 0 likes
      3. Yehuda Katz  🥨‏Verified account @wycats 10 Oct 2014
        Replying to @ethangunderson

        @ethangunderson They affect "one minute from now", but do not change the meaning of "one minute"

        1 reply 0 retweets 0 likes
      4. Ethan Gunderson‏ @ethangunderson 10 Oct 2014
        Replying to @wycats

        @wycats Ah, good point.

        0 replies 0 retweets 0 likes
      5. End of conversation
      1. New conversation
      2. ★‏ @ayarunas 10 Oct 2014
        Replying to @wycats

        @wycats Days and weeks because of daylight savings?

        1 reply 0 retweets 0 likes
      3. Yehuda Katz  🥨‏Verified account @wycats 10 Oct 2014
        Replying to @ayarunas

        @ayarunas Days and week because of leap seconds.

        1 reply 0 retweets 0 likes
      4. ★‏ @ayarunas 10 Oct 2014
        Replying to @wycats

        @wycats Ah, thank you.

        0 replies 0 retweets 0 likes
      5. End of conversation
      1. Reginald Braithwaite‏ @raganwald 10 Oct 2014
        Replying to @wycats

        @wycats @domenic And my favourite: “One month from one month ago” is not necessarily today.

        0 replies 0 retweets 2 likes
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      1. Lau T.‏ @laut 10 Oct 2014
        Replying to @wycats

        @wycats Leap seconds are usually put as 61st second eg. 23:59:60 So you could argue that that minute is 61 seconds long.

        0 replies 0 retweets 0 likes
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