What do 'real', 'user' and 'sys' mean in the output of time(1)?

What do 'real', 'user' and 'sys' mean in the output of time(1)?

unix time benchmarking

unix

Why is 1/1/1970 the "epoch time"?

unix time epoch

unix

How can I redirect the output of the "time" command?

shell unix time io-redirection

unix

What should we do to prepare for 2038?

unix time maintainability year2038

unix

File modification time (seconds) on Unix

unix file time

unix

Change datetime to Unix time stamp in Python

python unix datetime time timestamp

unix

mktime and tm_isdst

c unix time freebsd mktime

unix

NTPD: use an unrestricted port for communication

unix time ntpd

unix

strtotime('today') returning incorrect time?

php unix time strtotime timezone-offset

unix

Why is sys+user > real in "time command"?

linux unix time pthreads benchmarking

unix

What is the Windows equivalent of the Unix function gmtime_r?

c++ visual-studio-2010 unix time porting

unix

Bash time format HH:MM in 12 hour format AM/PM

bash shell date unix time

unix

Time terminology

c++ c linux unix time

unix

How to log the time taken for a unix command?

shell unix time command

unix

Overhead of time command in unix

bash unix time overhead unix-timestamp

unix