You may try
library(lubridate)
seconds_to_period(86400)
#[1] "1d 0H 0M 0S"
seconds_to_period(48000)
#[1] "13H 20M 0S"
If you need to format
td <- seconds_to_period(86400)
sprintf('%02d %02d:%02d:%02d', day(td), td@hour, minute(td), second(td))
#[1] "01 00:00:00"
If it spans for >99
days,
td <- seconds_to_period(1e7)
sprintf('%03d %02d:%02d:%02d', day(td), td@hour, minute(td), second(td))
#[1] "115 17:46:40"
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