It usually starts with good news: a new job, a place at a university abroad, a partner in another country. Then the practical part kicks in. When you finish work, they are asleep. When they want to talk, you are in a meeting. A few weeks of missed calls later, the chat has gone quiet — not because anyone stopped caring, but because nobody could find the time.
Distance doesn't have to end a friendship. But it does change how you keep one going. Here is what helps.
Friendships run on time — so plan it
A well-known study by the communication researcher Jeffrey Hall estimated that it takes around 50 hours together to go from acquaintance to casual friend, around 90 hours to become real friends, and more than 200 hours for a close friendship. You don't need to count hours, but the point is useful: friendships are kept alive by time spent together, and when you live apart, that time no longer happens by accident. It has to be planned.
The good news is that the same research suggests what you do with the time matters too. Catching up, joking around and sharing everyday things builds closeness — and all of that works over a screen.
Find your overlap
Every pair of time zones has a window where both people are awake. Between Denmark and the US east coast it is usually your evening and their afternoon; between Denmark and Australia it is often your early morning and their evening. Once you know the window, protect it.
- Look it up once, properly. Our free tool What time is it for …? shows your friends' clocks side by side and the hours when nobody is asleep. You can send them a link with both your cities.
- Watch out for summer time. Europe and North America change their clocks on different dates, so for a few weeks every spring and autumn the difference is an hour smaller than usual. Many countries near the equator don't change at all, and Australia changes the opposite way to Europe.
- Always say the time zone. "8 p.m. Danish time" is clear. "Tonight at 8" is a recipe for someone waiting alone for an hour.
Make it a habit, not an event
A big three-hour catch-up every few months feels special, but it is easy to postpone. A short, regular call is much harder to lose. Pick something small that fits both lives: twenty minutes every Sunday, a call on the walk to work, or the same evening every other week. Put it in the calendar like any other appointment.
If the overlap is awkward for one of you, take turns being the one who stays up late or gets up early. It feels fairer, and nobody burns out.
Fill the gaps with small things
Most of what keeps friends close is not long conversations but small signals that say "I thought of you". Those work brilliantly across time zones, because they can be read whenever it suits.
- Voice messages. Hearing someone's voice is closer than text, and they can listen over breakfast while you sleep.
- Photos of ordinary things. Your dinner, the snow outside, a funny sign. Everyday life is exactly what you miss when you live apart.
- Something to do together, apart. Watch the same series and message about it, play a game together, or both answer the same quiz and compare scores the next day.
- Remember the dates. A message on a birthday or before an exam means a lot when you can't be there in person.
Look after your own sleep
Night owls are often the ones who end up taking the late calls, and that is fine now and then. But if the friendship means you stay up past 2 a.m. several nights a week and then try to function in the morning, your sleep will shift and you will feel it. Read our guide to social jetlag if your week has started to feel like a long-haul flight. A friend who cares about you would rather talk at a sensible hour than have you exhausted.
When it starts to drift
Almost every long-distance friendship has quiet periods. It is not a sign that it is over. Often one of you is simply busy settling into a new life. The easiest way back is a low-pressure message that doesn't demand a long reply: "Saw this and thought of you", or "No need to answer, just wanted to say hi." And if you get the chance to meet in person — a holiday, a visit home — take it. A few days together can top up a friendship for a long time.
Have friends abroad? Add them on LatePals — your clocks may never line up perfectly, but there is always someone up when you are.
