The best alternatives to Sol are Arc, Timezone.io, and TimeZoneNinja. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of Sol?
AssemblyAI— Speech-to-Text API with superhuman accuracy
1 command to see when it is wherever your team mates are. Working on remote teams can be difficult across time barriers, so I built this tiny little CLI tool to make it a little easier. Currently supports Timezones like America/Toronto however next version will allow cities, and a slack integration is in the pipeline.