Bitcoin Cash network hard fork countdown online
Rather than a specific block height, the upgrades are based on a timestamp. When the median timestamp of the most recent 11 blocks (MTP-11) is greater than or equal to UNIX timestamp of November 15th (or May 15th) 12:00:00 UTC, the new protocol rules take effect. This better enables your business to prepare for the upgrade at a particular estimated time, plus or minus a few hours.
You can refer to the upgrade countdown on bch.tokenview.com to prepare in advance.