Helioporeo is a visual time zone planner for calls, remote meetings, family, clients and social media. It shows local time, daylight, twilight, office hours and shared availability across locations, so you can find a time that feels right for everyone.

Helioporeo works like the tuning needle of an old radio: drag the needle with your thumb across the day, and the times for every location update instantly.
You don't calculate the right moment. You just dial it in.

Below each location's daylight bar, Helioporeo shows two green stripes:

• Darker green: reasonable calling hours (8 AM–9 PM)
• Light green: typical office hours (9–5)

Where these stripes overlap across all your locations, the background is subtly highlighted. That's your window — the moments that work for everyone.

What Helioporeo shows

• Daylight, twilight, sunrise, sunset, and Golden Hour for every location
• Social and office hours as colored stripes beneath the day bar
• Shared availability, highlighted automatically
• Instant updates as you drag
• A look ahead: browse the calendar day by day or month by month

For everyone who lives across time zones

• Family calls: see at a glance whether it's breakfast, afternoon, or already bedtime — before you tap "call."
• Remote teams and client meetings: find the moment that works for everyone.
• Social media and content: find the times when your audience is most active.

Example groups and your own groups

Helioporeo comes with a curated collection of handpicked example groups, put together to show the most surprising, strange, and beautiful sides of global time:

• Polar night and the equator: where the sun disappears for months, and where it rises and falls like clockwork every single day
• Around the date line: where today and tomorrow sit directly side by side
• The odd ones out: places that march to their own 30- or 45-minute beat

These aren't just demos. They help you build a real feel for how time zones actually work.

You can create and edit your own groups: add your locations, organize your contacts, and build a view that truly fits your life.