How to check if reddcoind is syncing blockchain up to date?


I am sorry for bad grammar, I am not a native english-speaking person.

I am trying to setup reddcoind full node on linux CentOS 6.
Everything is work. The program running fine and looks like syncing blockchain correctly.

I am using bootstrap file and when I type command:

reddcoin-cli getinfo

I get a result some like this:

"blocks" : 1602839,

When I checked and compare the block number, my block number is behind the latest one.

How to know if my reddcoind blockchain is synchronized with the network, from command line?

Thank you.