Date and time notation in Brazil
Date and time notation in Brazil records the date using the day–month–year format. The country follows the national standard NBR 5892:2019 for date and time. It was originally published in 1989 and updated in 2019. In the long format, the day is written as a numeral, followed by the preposition "de", the month written in lowercase, and the year. The time is written using the 24-hour clock ; in spoken language and informal contexts the 12-hour clock is also commonly adopted.
Date
In Brazil, dates follow the "day month year" order, using a slash as the separator. Example: 20/06/2008 or 20/06/08. Leading zeros may be omitted, specifically on the day and month, but never on the year field: 9/5/08. In formal writing, months are spelled out and not capitalized, e.g., "20 de junho de 2008". Besides, day and year numbers are read as ordinals and year numbers are not grouped as in English. So, for instance, Brazilians never say "dezenove dezoito" for 1918, but they spell it as "mil, novecentos e dezoito". Below are some examples of dates and various formats of writing and reading them.Date: 01/05/1927 or 1/5/1927 or 1o de maio de 1927 or 1o. de maio de 1927.
Read as: primeiro de maio de mil, novecentos e vinte e sete.
Or informally as: um de maio de vinte e sete..
Note: If the century in question is specified in the context only the final part may be read. For example, the above date might be very shortly spelled as "um do cinco de vinte e sete".
Date: 2/12/1967 or 02/12/1967 or 2 de dezembro de 1967.
Read as: dois de dezembro de mil, novecentos e sessenta e sete.
Or informally as: dois do doze de mil, novecentos e sessenta e sete.
Within a month, days are referred to as "no dia"+"ordinal number that corresponds to the date". Let us suppose a test is set up for April 15 and hearers know what the month in question is. In situations like this, the speaker usually says "O teste será no dia quinze". Again, if we suppose the month in question is April, then " dia quinze do mês passado"=" day fifteen of last month" means March 15 and " dia quinze do mês que vem"=" day fifteen of next month" is used for May 15.