#!/bin/bash
#
# Usage:
#   fmt_time SECONDS
#
# Examples:
#   $ fmt_time 90
#   0:01:30
#
#   $ fmt_time $((60 * 60))
#   1:00:00
#
#   $ fmt_time $((60 * 60 * 24 * 400))
#   400 days, 0:00:00
#

fmt_time() { python -c "import datetime; print datetime.timedelta(seconds=$1)"; }

[[ $BASH_SOURCE = $0 ]] && fmt_time "$1"