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Fechas y horas

Arreglos de valores de fecha y hora que se pueden visualizar en diferentes formatos

Los tipos de datos de fecha y hora datetime, duration y calendarDuration admiten cálculos eficientes, comparaciones y visualizaciones con formato de fechas y horas. Trabaje con estos arreglos de la misma forma que trabaja con los arreglos numéricos. Puede agregar, sustraer, ordenar, comparar, concatenar y representar gráficamente valores de fecha y hora. También puede representar fechas y horas como arreglos numéricos o como texto. Para obtener más información, consulte Represent Dates and Times in MATLAB o vea Arreglos de fecha y hora.

Funciones

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Crear arreglos de fecha y hora

Crear arreglos de fecha/hora (datetime)

`datetime`	Arrays that represent points in time
`NaT`	Not-a-Time

Crear arreglos de duración

`years`	Duration in years
`days`	Duration in days
`hours`	Duration in hours
`minutes`	Duration in minutes
`seconds`	Duration in seconds
`milliseconds`	Duration in milliseconds
`duration`	Lengths of time in fixed-length units

Crear arreglos de duración/calendario (calendarDuration)

`calyears`	Calendar duration in years
`calquarters`	Calendar duration in quarters
`calmonths`	Calendar duration in months
`calweeks`	Calendar duration in weeks
`caldays`	Calendar duration in days
`calendarDuration`	Lengths of time in variable-length calendar units

Dividir fechas y horas

Extraer componentes por unidad de tiempo

`year`	Year number
`quarter`	Quarter number
`month`	Month number and name
`week`	Week number
`day`	Day number or name
`hour`	Hour number
`minute`	Minute number
`second`	Second number

Dividir en arreglos numéricos

`ymd`	Year, month, and day numbers of datetime
`hms`	Hour, minute, and second numbers of datetime or duration
`split`	Split calendar duration into numeric and duration units
`time`	Convert time of calendar duration to duration
`timeofday`	Elapsed time since midnight for `datetime` arrays

Determinar tipo, desfase de zona horaria, segundos intercalares

`isdatetime`	Determine if input is datetime array
`isduration`	Determine if input is duration array
`iscalendarduration`	Determine if input is calendar duration array
`isnat`	Determine NaT (Not-a-Time) elements
`isdst`	Determine daylight saving time elements
`isweekend`	Determine weekend elements
`leapseconds`	List all leap seconds supported by `datetime` data type
`timezones`	List time zones
`tzoffset`	Time zone offset from UTC

Desplazar o calcular diferencias entre fechas

`between`	Calendar math differences
`caldiff`	Calendar math successive differences
`dateshift`	Shift date or generate sequence of dates and times
`isbetween`	Determine elements within date and time interval

Convertir a números y cadenas

Convertir a números

`datenum`	Convert date and time to serial date number
`convertTo`	Convert `datetime` values to numeric representations
`datevec`	Convert date and time to vector of components
`exceltime`	Convert MATLAB datetime to Excel date number
`juliandate`	Convert MATLAB datetime to Julian date
`posixtime`	Convert MATLAB datetime to POSIX time
`yyyymmdd`	Convert MATLAB datetime to YYYYMMDD numeric value
`addtodate`	Modify date number by field

Convertir a cadenas

`char`	Character array
`string`	String array
`datestr`	Convert date and time to string format

Fecha y hora actuales como números o cadena

`now`	Current date and time as serial date number
`clock`	Current date and time as date vector
`date`	Current date as character vector

Día de semana o mes en el calendario

`calendar`	Calendar for specified month
`eomday`	Last day of month
`weekday`	Day of week

Tiempo transcurrido como número

etime Time elapsed between date vectors

Temas

Represent Dates and Times in MATLAB

Use datetime arrays to store date and time information. These arrays support arithmetic, sorting, comparisons, plotting, and formatted display.

Compare Dates and Time

You can perform an element-by-element comparison of values in two datetime arrays or two duration arrays using relational operators, such as > and <.

Date and Time Arithmetic
Plot Dates and Durations

Set Date and Time Display Format

The Format property on datetime, duration, and calendarDuration arrays controls the display of values in each array. You can change the value of this property. Changing the Format property does not change the values in the array, only their display.

Specify Time Zones

When you create a datetime, it is unzoned by default. If you work with datetime values from multiple time zones or need to account for daylight saving time, you might need to specify a time zone.

Convert Date and Time to Julian Date or POSIX Time

Share Code and Data Across Locales

Follow these best practices when sharing code that handles dates and time with MATLAB^® users in other locales. Write and read dates from other locals.

Core Functions Supporting Date and Time Arrays

Many functions in MATLAB operate on date and time arrays in much the same way that they operate on other arrays.

Solución de problemas

Carryover in Date Vectors and Strings

If an element falls outside the conventional range, MATLAB adjusts both that date vector element and the previous element.

Converting Date Vector Returns Unexpected Output

Because a date vector is a 1-by-6 vector of numbers, datestr might interpret your input date vectors as vectors of serial date numbers—or interpret serial date numbers as date vectors—and return unexpected output.