To the uninitiated, today is just March 14, 2015. It's just another Saturday in March. Nothing special to see here.

However, the math lovers of the world know today is their day. It's Pi Day, a day dedicated to celebrating the mathematical constant Pi, the ratio of a circle's circumference to its diameter, which starts out with 3.14 and goes on for digits and digits and digits. It's also Albert Einstein's birthday, so the world generally uses March 14 to celebrate all things math.

March 14, 2015 is an especially glorious Pi Day because when the date is written out as 3/14/15, it shows the first five digits of Pi, at least in the places where people write dates as month/day/year, like in the United States. Tack on the time of 9:26:53 a.m. and p.m., and you've got the first 10 digits of Pi (3.141592653).

The date and time won't match up as perfectly with Pi for another 100 years, so you better enjoy it while it lasts. Luckily, there are plenty of ways for you to get your Pi Day celebration on. In addition to loads of celebrations at museums and universities across the country, many stores, restaurants and websites are offering deals and discounts in honor of Pi Day. Be sure to check to see if there are deals in a city near you, but here are some of the best national deals you can snag in honor of Pi Day 2015.

1. Amazon Local

You can save $3.14 on everything on deal website Amazon Local on March 14 for one day only. There's so much on Amazon Local, from online courses to vacations to food, that it's basically like saving $3.14 on life.

2. American Mathematical Society

If this Pi Day has given you a newfound love for math, you're definitely going to want to take advantage of this deal from the American Mathematical Society. Current AMS members can get a 40 percent discount on most journal titles, while those not in AMS will get a 25 percent discount. This offer ends March 31, 2015. By this time next Pi Day, you will be such a mathematical superstar.

3. Blaze Pizza

Pi Day unofficially celebrates our love of pies, namely pizza pies. National pizza chain Blaze Pizza is serving up any pie of your choice for just $3.14 (limit one per customer). Head over to Blaze Pizza's website to see where there's a restaurant near you. Math never tasted so good.

4. Microsoft

Microsoft is going all out for Pi Day this year. There are some really nifty, new digital gift card templates in the Windows Store celebrating Pi Day and Einstein's birthday. You can also buy a 12-month Xbox Music Pass for $31.41 (regularly $99) on March 14 only. The new Einstein Brain Trainer HD app is also on sale for $2.99 in the Windows Store and $1.49 in the Windows Phone Store. All of this might just make this Pi Day the funnest one yet.

5. Scientific American

Remember this momentous Pi Day for ever and ever with Scientific American's Pi Day Commemorative Package. For $9.99, you will receive three of the magazine's best-selling issues featuring stories on the mathematical constant, plus a special issue on Einstein. The offer ends March 22, 2015 at 11 p.m., so you better get on that.

6. Your Pie

You can never have too many pizza deals, so here's another one to tickle your taste buds. Pizza chain Your Pie is also selling pizza pies for $3.14 each in honor of Pi(e) Day. What's more, you can also get a pint of beer for $3.14 from Your Pie. Unfortunately, Your Pie only has locations in the Southeast, but if you live near one, you better take advantage of these deal. How could you not?

Photo: Bill Ward | Flickr

Related: 14 Best Pi Day Movies On Netflix

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