timespan: Description of time span classes in lubridate

Description Examples

Description

A time span can be measured in three ways: as a duration, an interval, or a period.

Examples

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
duration(3690, "seconds")
period(3690, "seconds")
period(second = 30, minute = 1, hour = 1)
interval(ymd_hms("2009-08-09 13:01:30"), ymd_hms("2009-08-09 12:00:00"))

date <- ymd_hms("2009-03-08 01:59:59") # DST boundary
date + days(1)
date + ddays(1)

date2 <- ymd_hms("2000-02-29 12:00:00")
date2 + years(1)
# self corrects to next real day

date3 <- ymd_hms("2009-01-31 01:00:00")
date3 + c(0:11) * months(1)

span <- date2 %--% date  #creates interval

date <- ymd_hms("2009-01-01 00:00:00")
date + years(1)
date - days(3) + hours(6)
date + 3 * seconds(10)

months(6) + days(1)

lubridate documentation built on Nov. 17, 2017, 6:56 a.m.