Compute the exact length of a time span

time_length(x, unit = "second") # S4 method for Interval time_length(x, unit = "second")

x | a duration, period, difftime or interval |
---|---|

unit | a character string that specifies with time units to use |

the length of the interval in the specified unit. A negative number connotes a negative interval or duration

When `x`

is an Interval object and
`unit`

are years or months, `time_length()`

takes into account
the fact that all months and years don't have the same number of days.

When `x`

is a Duration, Period
or `difftime()`

object, length in months or years is based on their
most common lengths in seconds (see `timespan()`

).

#> [1] 1811.286# Exact age time_length(int, "year")#> [1] 34.71233# Age at last anniversary trunc(time_length(int, "year"))#> [1] 34# Example of difference between intervals and durations int <- interval(ymd("1900-01-01"), ymd("1999-12-31")) time_length(int, "year")#> [1] 99.99726#> [1] 100.063