Hubstaff - Simple yet powerful employee work tracker with screenshots, timesheets, billing, in-depth reports, and more. Understand productivity issues and act on them.
Timezone.io - Keep track where and when your team is.
Spacetime - Work hour and time zone management for distributed teams.
TimeLord for Slack - Timezone converter bot for Slack
Connecteam - Connecteam offers multi-functional team collaboration mobile application for companies that manage on-the-go teams.
Time Zone Converter - Time Zone Converter is an online productivity tool to calculate exact time across time zones.