Dates as per ASME Y14.100-2004 2

[aardvarkdw]

Had anyone else not relaized that as per ASME Y14.100-2004 para 4.28, dates on drawings are to be written Year-Month- Day rather than Month-Day-Year? I have always written dates Month-Day-Year, am I the only one?

 

[Heckler]

I use to write the date year-month-day but was told to change by management because it was not standard to everyday folks.

Best Regards,

Heckler
Sr. Mechanical Engineer
SW2005 SP 5.0 & Pro/E 2001
Dell Precision 370
P4 3.6 GHz, 1GB RAM
XP Pro SP2.0
NVIDIA Quadro FX 1400
o
_`\(,_
(_)/ (_)

Never argue with an idiot. They'll bring you down to their level and beat you with experience every time.

 

[ctopher]

Yes, I have seen it. A lot of companies here in the USA refuse to follow it. We tried to follow it at my last company, no go.

Chris
Systems Analyst, I.S.
SolidWorks 06 4.1/PDMWorks 06
AutoCAD 06
ctopher's home (updated 06-21-06)

 

[aardvarkdw]

Okay, so what you are saying is that this is one of those rules that a bunch of people, who live in their own private worlds, sat down and thought "How should we do this?" and without consulting anyone in the real world, came up with a way to do something that is completly different from the way everyone else in the world does it everyday. And as such, everyone has tried to make this work at some point and everytime they have just gone back to doing it "wrong" because they couldn't change everyone else's minds in order to do it "right".



Is that about how you all see it?

 

[ctopher]

Yes. The people that write the standards wouldn't have a job if they didn't get together to change something.

Chris
Systems Analyst, I.S.
SolidWorks 06 4.1/PDMWorks 06
AutoCAD 06
ctopher's home (updated 06-21-06)

 

[KENAT]

Back in the UK it was day, month, year. I believe this goes for all of Europe, not sure about the rest of the world.

This could cause confusion when looking at US documents.

My guess is they chose Year Month Day because no one else does it this way and it would help avoid confusion!

Also if you have the date as part of the file name it sorts better this way.

Maybe there is an ISO convention they are trying to match.

 

[looslib]

We started using that format when the software we were using was storing it in that format. This way we could pull the date from the PDM system and use it directly to populate the drawing fields.


"Wildfires are dangerous, hard to control, and economically catastrophic."

Ben Loosli
Sr IS Technologist
L-3 Communications

 

[btrueblood]

Hmm. I think the "year first" date format is/was/has always been a military requirement, at least for their internal reports (not sure it ever flowed down to the subcontractors, but I did see it on Level 1 drawings if memory serves)? Thus its inclusion under the Y14.100 "tree" of specifications, which is the ANSI continuation of the old DOD-STD-100, which is the continuation of the predecessor MIL-STD-100. Which is why we (a civilian company with nothing much to do with MIL/NAV/AF/NASA) call out Y14.5 on our drawings, not Y14.100...

 

[CorBlimeyLimey]

Year(4 digit)-Month-Day is the most logical way (IMO) of writing a date. You wouldn't write time as min-sec-hour or sec-min-hour so why suddenly change the format (large to small) when writing a date.

http://www.w3.org/QA/Tips/iso-date

Helpful SW websites FAQ559-520
How to get answers to your SW questions FAQ559-1091

 

[aardvarkdw]

CBL-
If only that was the way that americans as a whole wrote the date. I think it makes the most logical sense, but like anything else that is ingrained practically from birth, I can't see it changing any time soon.

 

[EngJW]

Some places use day-month-year. If you see 11-12-06, would you call it Dec 11 or Nov 12 if you didn't know the system?

 

[KENAT]

Does Y14.100 say if the year is to be 2 digit or 4?

If 2 digit then for the next few years there will still be some possibilty of confusion.

Ken

 

[aardvarkdw]

It specifies a 4 digit year

 

[looslib]

ASME Y14.100, 4.28:
The method of specifying dates on drawings shall be
numerical by year-month-day for entry in the “DATE”
block. For example, June 10, 1989 would be indicated
as 1989-06-10, 89-06-10, 19890610, 890610, 1989/06/10,
or 89/06/10.


"Wildfires are dangerous, hard to control, and economically catastrophic."

Ben Loosli
Sr IS Technologist
L-3 Communications

 

[KENAT]

Figured it had it covered.

 

[drawoh]

The yyyy/mm/dd format is an ISO procedure as far as I know. I was told about it back in the seventies.

I do not trust any other numerical date format. The European system is dd/mm/yyyy, and the American system mm/dd/yyyy. Much of the time, I cannot tell them apart.

The yyyy/mm/dd format sorts nicely on a computer.

JHG

 

[ERE]

Yes. The people that write the standards wouldn't have a job if they didn't get together to change something.

Membership on the ASME Y14 standard committees is completely voluntary - ASME does not compensate committee members for their time, nor do they cover travel expenses. In fact, many committee members pay all of their own travel expenses to attend meetings. Membership on one of the Y14 committees is a big time commitment. Typically, an active committee will meet in person for three or more days at a time, two or more times a year depending on deadlines. Some committees have multiple teleconferences between in-person meetings. The Y14.5 committee meets for five days at a time with some members doing preliminary work a couple of days ahead of the regular meeting.

The ASME committees are comprised of people who have a wide range of experience in the area covered by their particular standard. They work in industry, education and government. All of the members I know are dedicated to improving the standards for the benefit of all of us; none are interested in wasting their time making trivial changes. If you are not happy with any of the standards, contact ASME about becoming a member of one of the standard committees - they're always looking for qualified members.

 

[gearguru]

Another format for writing dates used in US auto industry (GM standard, I believe):
08AU06 for August 8, 2006.
Abreviations used for the months: JA, FE, MR, AP, MY, JN, JL AU, SE, OC, NO, DE.

 

[drawoh]

gearguru,

How about 06B05 for 2006 February 05?

I have seen this one.

JHG

 

[MechNorth]

DRAWOH is correct, the YYYY/MM/DD convention is the metric standard, defined in SI Metric (Systeme Internationale). Why that convention was chosen rather than smallest to largest, I have no idea, but presumably those able-minded people on the standardization committees around the world adopted it for a reason.

Which brings me to ERE's point. People who volunteer their time, resources and often personal funds to participate on various standards development committees should be appreciated, even when their logic is beyond immediate grasp. I've personally logged thousands of hours of personal time working on international standards, and I know many other people who do the same. When standards are developed, even those for use inside a single nation, the efforts and inputs of countless representatives are considered, weighted and negotiated before settling on the final result.

I would presume that most comments about those who develop the standards are tongue-in-cheek, but just the same, the next time someone offers a glib comment about their efforts, think about life without ASME, ANSI, ISO, CSA, DIN, JIS, and every other industrial design standard their is out there...

Jim Sykes, P.Eng, GDTP-S
Profile Services
CAD-Documentation-GD&T-Product Development

http://www.profileservices.ca