diff --git a/command/service/opts.go b/command/service/opts.go
index 7da8338512..90d0f99249 100644
--- a/command/service/opts.go
+++ b/command/service/opts.go
@@ -575,14 +575,14 @@ func addServiceFlags(cmd *cobra.Command, opts *serviceOptions) {
 	flags.Var(&opts.resources.limitMemBytes, flagLimitMemory, "Limit Memory")
 	flags.Var(&opts.resources.resCPU, flagReserveCPU, "Reserve CPUs")
 	flags.Var(&opts.resources.resMemBytes, flagReserveMemory, "Reserve Memory")
-	flags.Var(&opts.stopGrace, flagStopGracePeriod, "Time to wait before force killing a container")
+	flags.Var(&opts.stopGrace, flagStopGracePeriod, "Time to wait before force killing a container (ns|us|ms|s|m|h)")
 
 	flags.Var(&opts.replicas, flagReplicas, "Number of tasks")
 
 	flags.StringVar(&opts.restartPolicy.condition, flagRestartCondition, "", "Restart when condition is met (none, on-failure, or any)")
-	flags.Var(&opts.restartPolicy.delay, flagRestartDelay, "Delay between restart attempts")
+	flags.Var(&opts.restartPolicy.delay, flagRestartDelay, "Delay between restart attempts (ns|us|ms|s|m|h)")
 	flags.Var(&opts.restartPolicy.maxAttempts, flagRestartMaxAttempts, "Maximum number of restarts before giving up")
-	flags.Var(&opts.restartPolicy.window, flagRestartWindow, "Window used to evaluate the restart policy")
+	flags.Var(&opts.restartPolicy.window, flagRestartWindow, "Window used to evaluate the restart policy (ns|us|ms|s|m|h)")
 
 	flags.Uint64Var(&opts.update.parallelism, flagUpdateParallelism, 1, "Maximum number of tasks updated simultaneously (0 to update all at once)")
 	flags.DurationVar(&opts.update.delay, flagUpdateDelay, time.Duration(0), "Delay between updates (ns|us|ms|s|m|h) (default 0s)")
@@ -598,8 +598,8 @@ func addServiceFlags(cmd *cobra.Command, opts *serviceOptions) {
 	flags.Var(&opts.logDriver.opts, flagLogOpt, "Logging driver options")
 
 	flags.StringVar(&opts.healthcheck.cmd, flagHealthCmd, "", "Command to run to check health")
-	flags.Var(&opts.healthcheck.interval, flagHealthInterval, "Time between running the check")
-	flags.Var(&opts.healthcheck.timeout, flagHealthTimeout, "Maximum time to allow one check to run")
+	flags.Var(&opts.healthcheck.interval, flagHealthInterval, "Time between running the check (ns|us|ms|s|m|h)")
+	flags.Var(&opts.healthcheck.timeout, flagHealthTimeout, "Maximum time to allow one check to run (ns|us|ms|s|m|h)")
 	flags.IntVar(&opts.healthcheck.retries, flagHealthRetries, 0, "Consecutive failures needed to report unhealthy")
 	flags.BoolVar(&opts.healthcheck.noHealthcheck, flagNoHealthcheck, false, "Disable any container-specified HEALTHCHECK")