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A good day to travel,
chosen four ways

Dates · August 2026 · 6 min read

What do you actually look at when choosing a travel date?

Choosing a travel date isn't hard. The list of things to check is fixed, and the only thing you really need to grasp is that each of the four looks at something different. So let's start there.

The first three pick a date; the last one is about direction. Direction gets its own note in how to choose your travel direction. Here we'll walk through the three that decide the day.

What does it mean for a day to pair with mine?

Yukhap (육합, the "six harmonies") is the relationship between two earthly branches that make a pair. The twelve branches sort into six couples, and a day whose branch is your partner has long been read as a day that doesn't run crosswise. That makes it a good fit for something like travel, where several people and several plans have to mesh.

Strictly, the comparison is between the branch of your day pillar and the branch of the day itself. But if you don't know your birth time, or have never had a chart read, your zodiac animal — the branch of your birth year — gives you a rough version. Here are the six pairs.

An "Ox day" or a "Pig day" means the branch of that day's iljin (일진, the day's own pillar). The iljin turns on a sixty-day cycle, so the same branch comes back around every twelve days. That's two or three chances in any given month.

Why is a yeokma day good for travel?

Yeokma (역마, the "traveling horse") is read as energy that comes loose when you move. The name comes from the horses kept at the old Korean post stations, and in saju the character stands for movement, going out, changing where you are. For a travel date, that makes it about as direct a criterion as you'll find.

Your yeokma position is set by samhap (삼합, the "three harmonies"), which bundles the twelve animals into groups of three. Find your group and you have it.

Yeokma days also come around every twelve days. And here's the neat part: the yeokma day and the yeokma direction travel together. If you're a Rat, setting out on a Tiger day toward the northeast lines up the date and the bearing at once. What yeokma actually means is written up separately in what yeokma means.

Does son-eomneun-nal apply to travel too?

A son eomneun nal (손 없는 날, roughly "a day with no spirit about") is a day whose lunar date ends in 9 or 0. That's the 9th, 10th, 19th, 20th, 29th and 30th — six a month — and the name comes from an old idea that the spirits who get in the way have gone up to the sky and left the place empty.

Traditionally it was used for moving house, opening a shop, holding a wedding — occasions where you shift position and start something new. You don't have to bend a trip around it. That said, it's worth a look for a long trip where you're hauling everything you own, and more practically, it's an easy criterion to argue for when you're settling on a date with other people.

Are there days better left alone?

There are. Days that chung (충, "clash") with your animal. Chung is the relationship between two branches sitting directly opposite each other on the circle of twelve, and it's read as a position where the two push against one another. The six pairs are Rat↔Horse, Ox↔Goat, Tiger↔Monkey, Rabbit↔Rooster, Dragon↔Dog and Snake↔Pig.

But this does not mean you can't travel on a clashing day. Traditionally it's read as something closer to "a day when things tend not to come together on the first try." In practice, here's a realistic way to handle it.

• Move an itinerary with two or more connections, or a punishing day trip, to another date.
• If you have to go that day regardless, add thirty minutes of slack to everything.
• Finish checking bags, documents and bookings the day before.

A clashing day isn't "don't go." It reads as "go, with a little more room."

What if the dates aren't mine to choose?

That's most trips. The leave is already fixed, the tickets are already paid for, and someone else's calendar is driving. When that's the case, choose the things you can still choose.

• Shift the hour you leaveEven on the same date, which of the day's twelve two-hour blocks you set out in changes the grain of it. It's all in how to pick your departure time.
• Place the good day inside the tripOn a three-day trip, put whatever matters most — the hike, the long transfer, the meeting you care about — on the best of the three days.
• Balance it with directionIf you can still choose where you go inside the trip, add a night in a city that sits in a direction that suits you.

So what order do I actually do this in?

Four criteria at once gets muddled. Narrowing down in order takes no time at all.

• Fix the possible window firstLeave, weekends, public holidays — cut it down to the range you could realistically go in.
• Find the yeokma days and pairing days inside itOn a twelve-day cycle, one or two usually land.
• Take out the clashing daysIf that leaves you nothing, don't cut them — turn them into the relaxed days instead.
• If a son-eomneun-nal overlaps, take itAnd if none does, that's fine. Two out of four is enough.
• Match the direction lastCheck that the bearing you'll travel on your chosen day sits well with you.

Doing those five steps by hand means opening an almanac and cross-referencing lunar dates, day pillars and samhap groups. 5htrip takes a window and picks three good days to set out, with the reasoning attached — whether it's a yeokma day, whether it pairs with yours — so you can weigh it up yourself.