The best replacement for zones is cdw.

The best alternatives to zones are rated as following:
★★★★★  cdw
★★★★  ldoms
★★★  containers
★★  conditional forwarding
★  utc
★  divisions
★  jails
★  open zones
★  biomes
★  30 day shred
★  lpar
★  sunset zones
  ldom
  heart rate zones
  vshield app
  pacific time zones
  belts

Your alternative for zones is not listed? Suggest!
Speaking about zones, one probably shouldn't forget about area codes.

Other search terms related to zones and their ratings are:
★★★★★ area codes
★★★★★ map
★★ current times
★★ state names
★ current time
clocks
world map
You have in mind a companion for zones and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of zones in all years. Click on graph for more.
zones
cdw
ldoms