Schedule Across Time Zones

Add cities → drag timeline → export to calendar

1. Click Add Zone and search for your cities
2. Drag on the timeline to select your meeting time
3. Add participant names and emails for each timezone
4. Export to calendar or share a link

Yes – click the info icon on any date

1. Click the info icon on any date in the calendar strip
2. View detailed holiday information including cultural context
3. See typical observances and scheduling tips for each event

50+ holidays worldwide including religious, cultural, and public holidays

• Ramadan, Eid al-Fitr, Eid al-Adha
• Chinese New Year, Mid-Autumn Festival
• Diwali, Holi, Navratri
• Hanukkah, Passover, Rosh Hashanah
• Christmas, Easter, Thanksgiving
• Nowruz, Tet, Songkran, Golden Week, Chuseok
• Public holidays and school holiday periods for each country

Yes – supports .ics, Google Calendar, Outlook.com, and Outlook 365

• .ics file – works with any calendar app
• Google Calendar – opens directly in your calendar
• Outlook.com – for personal Microsoft accounts
• Outlook 365 – for work/school Microsoft Exchange accounts

All participants are automatically added as meeting attendees.

Yes – click the person icon next to any timezone

1. Click the person icon next to any timezone
2. Enter participant name and email address
3. Export to calendar – participants are automatically added as attendees

Yes – 100% free, no sign-up, no ads, no limits

• No sign-up required
• No ads
• Full access to all features: timezone conversion, meeting scheduling, holiday information, participant management, calendar export, and link sharing

Click menu → Share link (preserves all settings)

1. Click the kebab menu (three dots)
2. Select Share link or Copy times
3. Recipients see your exact configuration: timezones, participants, and meeting time

Look for colored dots on dates in the calendar strip

• Orange – Public holidays
• Purple – Religious events
• Yellow – School holidays

Click the info icon on any date to see details. Use the toggles to show or hide different holiday types.

Uses IANA database – same as your OS and phone

TZS uses the IANA Time Zone Database, the same standard used by major operating systems and applications. It automatically handles daylight saving time transitions for all supported timezones.

Yes – enable "Working Hours" in the timeline legend

This highlights typical business hours (9 AM – 6 PM) for each timezone, helping you find times when all participants are within their working hours.

400+ cities worldwide, UTC-12 to UTC+14

TZS supports over 400 cities across all major time zones worldwide. Search for any major city to add its timezone.

tzschedule.com, timezoneschedule.com, tzs.app

All three domains point to the same tool. Use whichever is easiest to remember!

Save contacts → organize into groups → one-click add to meetings

• Save contacts with name, email, timezone, and company
• Organize into groups (e.g., 'Engineering Team', 'US Clients')
• Filter by multiple groups at once
• Click any contact to instantly add their timezone to the meeting
• Import from CSV (Google, Outlook), vCard, or paste text
• Export to CSV or vCard for backup or sharing
• Find and merge duplicate contacts automatically
• Bulk edit groups and timezones for multiple contacts

Yes – use checkboxes to assign multiple groups

Contacts can be assigned to multiple groups simultaneously. For example, a contact could be in both 'Leadership' and 'APAC Team' groups. When filtering, you can select multiple groups to see contacts that belong to any of the selected groups.

Quick visual identification of each timezone's location

Flags appear next to the live time in the sidebar and in the meeting time panel. This makes it easy to scan and identify locations at a glance, especially when working with many timezones.

Click More → Import Contacts (supports CSV, vCard, and text)

• CSV files – Import from Google Contacts, Outlook, or any spreadsheet
• vCard (.vcf) – Import from your phone or other contact apps
• Paste text – Simply paste names and emails, we'll parse them automatically

The importer auto-detects columns from Google and Outlook CSV formats, including multi-line addresses.

Click More → Export as CSV or vCard

• CSV format – For Excel, Google Sheets, or reimporting later
• vCard format – For phone contacts apps and other devices

Exports include name, email, timezone, company, and group assignments.

Save your current setup to reuse later

1. Configure your timezones, participants, and working hours
2. Click the bookmark icon in the top toolbar
3. Give your preset a name (e.g., 'Weekly Team Sync')
4. Load it anytime from the presets dropdown

Presets save timezone rows, participant details, and working hours settings.

Click More → Find Duplicates to merge contacts

1. Open the More menu and click Find Duplicates
2. See contacts grouped by matching email addresses
3. Click Merge to combine duplicates into one record

Merging keeps the most complete information from all duplicate entries.

Select multiple contacts → apply changes to all at once

• Use checkboxes to select contacts
• Set group membership for all selected
• Set timezone for all selected
• Delete multiple contacts at once

Use 'Select all' to quickly select all visible contacts.