Max Date value

[Ishaan]

Hi,

What is the max value for Date type supported by Mongo?

db.temporary.insert({ date1: new Date(255555,1,1) }); // Seems to work
db.temporary.insert({ date2: new Date(999999,1,1) }); // Sets date2 to
epoch

Regards,
Ishaan

[Nat]

Why would you like to store a date like that? Would it mean anything?
9999 seems to be far enough and seem to be the maximum year supported
by most language due to date-string formatting

Anyway, check out http://objjob.phrogz.net/js/object/224 for your
answer.

[Andreas Jung]

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Ishaan wrote:

> db.temporary.insert({ date2: new Date(999999,1,1) }); // Sets date2 to

Using year 99999 really does not make sense here.

- -aj
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[Robert Stam]

In the BSON document specification DateTimes are stored as a signed 64-
bit number offset (in milliseconds) from the UNIX Epoch
(1970-01-01T00:00:00Z). So the range of dates in BSON is:

Min: 1970-01-01T00:00:00Z - 9,223,372,036,854,775,808 ms
Max: 1970-01-01T00:00:00Z + 9,223,372,036,854,775,807 ms

However, you are more likely going to be limited by the DateTime type
in your programming language of choice. For example, in C# the range
is:

Min: 0001-01-01T00:00:00Z (1970-01-01T00:00:00Z - 62,135,596,800,000
ms)
Max: 9999-12-31T23:59:59.999999Z (1970-01-01T00:00:00Z +
253,402,300,800,000 ms)

So you can see that the range of DateTime values in BSON is much
larger than the range of DateTime values in C# (it's also a bit less
precise since it is measured in milliseconds).

I don't know what the range of Date values in JavaScript is. Perhaps a
JavaScript expert can chime in.

I also agree with the comments that DateTime values that far in the
future or past don't make much sense (in most cases).

On Jan 11, 4:34 am, Andreas Jung <li...@zopyx.com> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
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>
> Ishaan wrote:
> > db.temporary.insert({ date2: new Date(999999,1,1) }); // Sets date2 to
>
> Using year 99999 really does not make sense here.
>
> - -aj
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> Version: GnuPG v1.4.11 (Darwin)

> Comment: Using GnuPG with Mozilla -http://enigmail.mozdev.org/

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