Calculator for minutes and seconds

[panache45]

Does anyone make a calculator with which I can add or subtract minutes and seconds by entering them as decimals? For example: 5.50 + 2.15 = 8.05 (5 min 50 sec + 2 min 15 sec = 8 min 5 sec). I have a "scientific" calculator that takes several extra key strokes to do this, and it sure would help if I can input the figures decimally.

[Q.E.D.]

How's this? (http://www.calculated.com/products/9426.html?office)

[panache45]

I notice that calculator has keys marked "hour," "min," and "sec," and I would guess you'd have to hit these keys before or after the numbers; that's similar to the one I already have. I want to be able to just hit the numbers separated by the period, like in base-10.

[Q.E.D.]

According to the online user's manual, the calculator will accept input in either format. So, if you wanted to enter 4 1/2 hours, you type [4][.][5][HOURS].

[urban1a]

Radio Shack used to have a calculator named 'ChronoMath' and I have one. I don't know whether they still have one, or not. Mine no longer works since it isn't Y2K compatible.

Bob

[xash]

Here's one that works that way (although the calculator was written for some other specific purpose) ... to subtract, just add a minus sign before the number.

http://www.csgnetwork.com/timescalc.html

[xash]

Wait... that calculator doesn't make sense... since it doesn't convert to the 5min 50 sec format at all. Sorry, ignore my previous post.

[MC Master of Ceremonies]

A scientific caculator should have a degrees, minutes, seconds button (probably marked DMS) which though its for the measurment of angles allows you to work in base-60 fractions.

[Crafter_Man]

I have Casio FX-451. I’ve used it for 20 years. It has two “base 60 conversion keys”: One key converts a real number to hours, minutes, seconds (h/m/s), while the other key converts h/m/s to a real number.

[Ponder Stibbons]

Yes, yes, these all have "conversion keys". But I think what panache45 was getting at was the ability to, say, hit a single key for "Time Mode" and then you don't worry about conversions, you just type in 12.30.25 and it knows you mean "12:30:25" and you can manipulate it the same as any "regular" number. Now that would be handy!

[MC Master of Ceremonies]

With degrees minutes seconds you should be able to set up your calculator to work exclusively in base-60.

[sailor]

And, of course, you can always use a spreadsheet or a programmable calculator.

[jimpatro]

Look for the Framemaster Timecode calculator.
We use it in the Broadcast and Film industry.
It covers Hours, Minutes, Seconds and Frames.
Drop Frame or Non-Drop Frame.

[Derleth]

And I'd just program my calculator to do the conversions automatically.

But I'm a hacker. That's how I approach a problem.