# Calendar dates

#### Everything You Need in One Place

Homework problems? Exam preparation? Trying to grasp a concept or just brushing up the basics? Our extensive help & practice library have got you covered.

#### Learn and Practice With Ease

Our proven video lessons ease you through problems quickly, and you get tonnes of friendly practice on questions that trip students up on tests and finals.

#### Instant and Unlimited Help

Our personalized learning platform enables you to instantly find the exact walkthrough to your specific type of question. Activate unlimited help now!

0/5
##### Intros
###### Lessons
1. Introduction to Calendar Dates:
2. What are calendar dates?
3. Written form of dates
4. Metric notation of dates
5. Explaining leap years (and the number of days in each month)
6. Other number formats/notations for dates
0/13
##### Examples
###### Lessons
1. Writing calendar dates in metric notation
Write the date in metric notation
1. June 29th, 1910
2. March 1st, 2004
3. October 16th, 2012
2. Writing metric notation dates in written (standard) form
Write the metric notation date in written form, using words and numbers
1. 1970 12 02
2. 2119 09 15
3. 2028 01 23
3. Writing calendar dates in different number notations
Write the calendar date shown in different notation formats:

1. $\overline{Y}$ $\overline{Y}$ $\;$ $\overline{M}$ $\overline{M}$ $\;$ $\overline{D}$ $\overline{D}$
2. $\overline{D}$ $\overline{D}$ $\;$ $\overline{M}$ $\overline{M}$ $\;$ $\overline{Y}$ $\overline{Y}$
3. $\overline{M}$ $\overline{M}$ $\;$ $\overline{D}$ $\overline{D}$ $\;$ $\overline{Y}$ $\overline{Y}$

1. $\overline{Y}$ $\overline{Y}$ $\;$ $\overline{M}$ $\overline{M}$ $\;$ $\overline{D}$ $\overline{D}$
2. $\overline{D}$ $\overline{D}$ $\;$ $\overline{M}$ $\overline{M}$ $\;$ $\overline{Y}$ $\overline{Y}$
3. $\overline{M}$ $\overline{M}$ $\;$ $\overline{D}$ $\overline{D}$ $\;$ $\overline{Y}$ $\overline{Y}$

1. $\overline{Y}$ $\overline{Y}$ $\;$ $\overline{M}$ $\overline{M}$ $\;$ $\overline{D}$ $\overline{D}$
2. $\overline{D}$ $\overline{D}$ $\;$ $\overline{M}$ $\overline{M}$ $\;$ $\overline{Y}$ $\overline{Y}$
3. $\overline{M}$ $\overline{M}$ $\;$ $\overline{D}$ $\overline{D}$ $\;$ $\overline{Y}$ $\overline{Y}$
4. Calendar Dates - Word Problem 1
Writing dates can be confusing!
Angie wrote her birth date on paper: 11 25 98
1. Can these numbers represent more than one date?
Write all possibilities for her birthday in written form.
2. Angie's sister Mina was born 3 years, one month, and 5 days later.
Write Mina's birthday in written form and in metric notation.
5. Calendar Dates - Word Problem 2
Writing dates can be confusing!
Toby wrote his birth date on paper: 01 07 13
1. Can these numbers represent more than one date?
Write all possibilities for his birthday in written form.
2. Toby wrote his birth date on paper: 01 07 13
If Toby told you that he was born during the summer of 2013, what is his birthday in metric notation?
###### Free to Join!
StudyPug is a learning help platform covering math and science from grade 4 all the way to second year university. Our video tutorials, unlimited practice problems, and step-by-step explanations provide you or your child with all the help you need to master concepts. On top of that, it's fun - with achievements, customizable avatars, and awards to keep you motivated.
• #### Easily See Your Progress

We track the progress you've made on a topic so you know what you've done. From the course view you can easily see what topics have what and the progress you've made on them. Fill the rings to completely master that section or mouse over the icon to see more details.
• #### Make Use of Our Learning Aids

###### Practice Accuracy

See how well your practice sessions are going over time.

Stay on track with our daily recommendations.

• #### Earn Achievements as You Learn

Make the most of your time as you use StudyPug to help you achieve your goals. Earn fun little badges the more you watch, practice, and use our service.
• #### Create and Customize Your Avatar

Play with our fun little avatar builder to create and customize your own avatar on StudyPug. Choose your face, eye colour, hair colour and style, and background. Unlock more options the more you use StudyPug.
###### Topic Notes

In this lesson, we will learn:

• How to write calendar dates in written form (words, ordinals, and numbers)
• How to write calendar dates in metric notation (numbers only, in the format: yyyy/mm/dd)
• Writing calendar dates using numbers in a variety of formats (mm/dd/yyyy OR mm/dd/yy OR dd/mm/yy)

Notes:

• Calendars and dates keep track of time! A date is a reference to a specific day in time, and we can tell how much time passes between two dates.
• Calendar dates use the units of time for: month, day, and year

• The written form of a calendar date is in the format: [month] [day]ordinal, [year]
• Ex. December 25th, 2020

• The metric notation of a calendar date is in the order: year / month / date
• i.e. yyyy / mm / dd (sometimes it is seen with dashes or spaces instead)
• this orders the time units from longest to shortest durations
• Ex. 2020 / 12 / 25 is December 25th, 2020
• *A special exception is that February has 29 days (instead of 28 days) during a leap year (every 4 years).

• Dates in metric notation are used often when filling in paperwork!
• There are other formats of writing out the date using numbers:
• mm/dd/yyyy (different order)
• mm/dd/yy (only the last 2 digits of the year)
• dd/mm/yy (different order)