如何四舍五入到最近的未来时间戳？

Question

I am using the lubridate function round_date to round timestamps like below:

round_date(as.POSIXct("2015-11-26 23:51:15"),"5 mins")

This gives as "2015-11-26 23:50:00 +08"

But I want to round it to future 5 mins not past. Like

round_date(as.POSIXct("2015-11-26 23:51:15"),"5 mins")

should round all the timestamps from 2015-11-26 23:50:01 to 2015-11-26 23:54:59 to

2015-11-26 23:55:00.

Any help is appreciated.

Answer 1

This should work.

lubridate::ceiling_date(as.POSIXct("2015-11-26 23:54:49"),"5 mins")

rounds all all the timestamps from 2015-11-26 23:50:01 to 2015-11-26 23:54:59 to 2015-11-26 23:55:00 .