Need a refresher on for the months of the year? What about the days of the week? It’s important to know what month and day you’re talking about when making appointments or time commitments in English. Keep reading to learn more about common month and days of the week

You are watching: What does tr stand for in days

Man holding tablet with calendar image

Months of the Year

For the most part, month use the first three letters of the word. Two exceptions are May (which is never abbreviated shorter than its original word) and September (which is often abbreviated with four letters). Here are common ways to abbreviate the months of the year.

Jan. - JanuaryFeb. - FebruaryMar. - MarchApr. - AprilMay - MayJun. - JuneJul. - JulyAug. - AugustSep. or Sept. - SeptemberOct. - OctoberNov. - NovemberDec. - December

Style Guide Exceptions

While the above are correct in informal writing, you should know how to use them when writing formally as well. Both the MLA and APA style guides dictate how you should abbreviate months. These rules include:

History of the Months of the Year

The modern calendar is known as the Gregorian calendar. It has changed from its original form as the ancient Roman lunar calendar, which had 10 named months and 2 unnamed months during the winter. Roman months were named after gods and goddesses and Latin words. They included:

January was named after Janus, god of gates and openings.February comes from the Latin februa (“to cleanse or clean”) and the purification festival of Februalia.March was named after Mars, god of war, during a period of military campaigns.April comes from the Latin aperio (“to open” in plants or buds).May was named after the goddess Maia, the earth goddess.June was named after the goddess of marriage, Juno.September comes from septem, the seventh month of the 10-month year.October comes from the Latin octo, meaning the eighth month of the year. November comes from the Latin novem (“nine”).December comes from the Latin decem (“ten).

Julius Caesar revised the calendar to the Julian calendar, which modified the month lengths according to the Earth’s revolutions around the sun. After his death, the months July (Julius) and August (Augustus) were added to the calendar.

Today’s Gregorian calendar keeps the Julian names – including the now-incorrect numbered names for September, October, November and December.

Days of the Week

Ever get confused when your weekly schedule is full of letters? Clear up any confusion with these days of the week There are two ways to abbreviate the days of the week: long and letter

See more: How To Get Highlighter Out Of Carpet, How To Remove Highlighter Stains From A Carpet

Long for Days

You’re more likely to see long on a weekly schedule or template. The long for the days of the week are:

Sun - SundayMon - MondayTue or Tues - TuesdayWed - WednesdayThu, Thur, or Thurs - ThursdayFri - FridaySat - Saturday

Short Days of the Week

When pressed for time or space, you may not want the longer for the days of the week. You might need to jot down shorter instead. Here’s how you might abbreviate the days of the week with even fewer letters:

S or U - SundayM - MondayT or Tu - TuesdayW - WednesdayTh or R - ThursdayF - FridayS - Saturday

Letter Schedules

Writing the days of the week as single letters allows you to convey a longer schedule. Some examples of letter schedules include:

SS - Saturday and SundayMWF - Monday, Wednesday, FridayT/Th or TR - Tuesday and/or Thursday

Try making a mnemonic for the days of the week! For example: Umbrellas Must Tango With Red Froggy Salamanders. Can you think of one that helps you remember the days of the week?

More Common

Are you up to speed on the days of the week and the months of the year? Review more time-related with an article on seconds, minutes, and hours. You can also brush up on your cooking measurement with a helpful list and conversion chart.