World Time Zone Converter
Plan meetings, sync fulfillment schedules, and coordinate cross-border teams across every region. Live clocks for 24 major cities, instant IANA timezone conversion, and a smart meeting-time finder for distributed teams.
Convert Time Across the Globe
Real-time clocks for the world's major commerce hubs, precise IANA timezone conversion, and a meeting planner that finds overlapping working hours for your distributed team.
Current local time in 24 major cities. Updates every second. Sun ☀️ and moon 🌙 indicators show who's in working hours and who's off the clock.
Pick a date and time, choose the source and target IANA time zones, and see the exact converted time with the offset difference.
Select two or more time zones below, set everyone's working-hours window, and we'll surface the overlapping hours that work for the whole team.
How It Works
Three steps to coordinate any cross-border conversation, shipment cutoff, or team sync.
Glance at the Live Clocks
Scan the 24-city world clock grid to instantly see who's awake, who's working, and who's already off for the day. Day and night indicators make the global picture obvious at a glance.
Convert Any Time Instantly
Pick a date and time, choose the source and target IANA time zones, and the converter returns the precise equivalent time with the exact offset difference — DST included.
Find a Slot That Fits Everyone
Select the time zones on your team and set working-hours windows. The meeting finder surfaces the overlapping hours so every region joins the call within business hours.
Built for Cross-Border Teams
Time zones are the silent killer of global commerce. This tool keeps your sourcing, fulfillment, and customer-facing teams aligned across continents.
Never Miss a Cutoff
Warehouse pick-and-pack cutoffs, carrier handoffs, and last-mile dispatch windows all live in local time. Convert accurately and ship on schedule.
Coordinate Global Teams
Sourcing in Shenzhen, ops in Los Angeles, support in Berlin — find the overlap where everyone's available instead of guessing across chat.
Sync Fulfillment Slas
Promise delivery dates in your buyer's local time and translate them back to the warehouse timezone that actually executes the shipment.
Respect Working Hours
Avoid pinging teammates at 2 a.m. The day/night indicators and meeting planner keep collaboration inside everyone's business hours.
Tips for Managing Global Teams
Small habits that make timezone-spanning collaboration feel effortless.
Anchor on a Single Source of Truth
Always store order deadlines, carrier cutoffs, and meeting times in UTC, then render them in each user's local zone. It eliminates ambiguity when DST shifts or a region changes its rules.
Protect Focus Hours Across Zones
Identify the daily overlap window where every region is online, and reserve it for live syncs. Keep the rest of the day for deep work so no team is stuck in back-to-back night calls.
Record Timezone on Every Handoff
When handing off a ticket or shipment status, always state the zone: "Cutoff 16:00 CST" not "Cutoff 4pm". This single habit prevents the majority of cross-border scheduling errors.
Plan Around DST Transitions
Daylight Saving shifts twice a year and not every region participates. Re-confirm recurring meeting times in March and November, and lean on the IANA-based converter for accurate offsets.
Frequently Asked Questions
Everything you need to know about timezone conversion, IANA zones, and scheduling across borders.
An IANA time zone (also called a tz database or Olson zone) is the international standard identifier for a region's time-keeping rules — for example America/New_York or Asia/Shanghai. Unlike fixed offsets (UTC+8), an IANA zone encodes the full history of a region's offsets, daylight-saving rules, and transitions. That's why this tool uses IANA zones: it stays accurate automatically even when a country changes its DST rules, and it's the same format used by every major programming language and operating system.
The converter relies on your browser's built-in Intl.DateTimeFormat engine and the IANA timezone database, which together apply the correct offset for the specific date and time you enter. If you convert a March date in New York (EDT, UTC-4) versus a January date (EST, UTC-5), the offset difference shown updates accordingly — no manual DST lookup required.
Select two or more time zones and define the working-hours window each team respects (say 09:00–18:00). The planner walks through every hour of the day in the first selected zone, converts it to each other zone, and keeps only the hours that fall inside everyone's working window. The result is the exact overlap your team can use for live meetings, with each city's local time listed side by side.
Two regions can sit at the same offset right now but follow different daylight-saving rules — for example Asia/Shanghai and Asia/Taipei both sit at UTC+8 today, but historically Taiwan observed DST while mainland China did not. Using the correct IANA zone guarantees the conversion stays right year-round and across rule changes, instead of silently drifting when a region adjusts its clock.
Yes — this World Time Zone Converter is a free reference tool, and all calculations run entirely in your browser. No dates, meeting times, or timezone selections are uploaded to a server, so it's safe to use for internal scheduling. Bookmark the page for quick access whenever you're coordinating cross-border fulfillment or global team calls.
Ready to Work Across Time Zones?
Time zones are just the start. Globe Fulfillment coordinates sourcing, warehousing, pick & pack, and cross-border shipping across 50+ countries — keeping every cutoff and delivery promise in sync, around the clock.
Talk to Our Fulfillment Experts