How Long Can You Still Say “明けましておめでとう”? Timing, Variations, and Social Context in Japanese (N5-N4)

How Long Can You Still Say “明けましておめでとう”?
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Why “明けましておめでとう” Is Not Just One Phrase?

Japanese New Year greetings may look simple at first, but they reflect politeness, social distance, and timing.

Learners often ask:

  • Which phrase is correct?
  • How long can you say it?
  • Why are there so many versions?

In reality, Japanese New Year greetings are not governed by strict rules.
They are shaped by context, relationship, and level matching.

In this article, we will look at:

  • how long people actually say 「明けましておめでとう」
  • how timing matters more than dates
  • how different expressions change tone and level
  • how to combine greetings naturally

Is There a Time Limit for Saying 「明けましておめでとう」?

There is no official or strict deadline for saying「明けましておめでとう(ございます)」 in Japanese.

In real usage:

  • It is most commonly said during the first three days of January, known as 三が日/Sanganichi (January 1–3).
  • It is also very natural to say it during the first week of January.
  • Even later in the month, it may still be used when meeting someone for the first time that year.

What matters most is not the date itself, but whether this is your first interaction of the year with that person.

Greetings After 三が日

After the first three days of January, especially in messages or on social media, people often add a softening phrase at the beginning.

A very common expression is 「遅ればせながら」, which politely acknowledges that the greeting is late.

Example:
遅ればせながら、明けましておめでとうございます!
“Belatedly, Happy New Year!”

This phrase is frequently used in:

  • text messages and emails
  • social media posts
  • situations where you did not have earlier contact in the new year

By using 遅ればせながら, the speaker shows awareness of timing and social context, rather than following a rigid rule.

This small phrase often sounds very natural to native speakers and gives the impression that you understand Japanese social nuance.


What Actually Matters: Timing and Relationship

Japanese New Year greetings follow social logic, not a fixed calendar rule.

In general:

– The closer or more important the person is, the earlier the greeting is exchanged.

– With coworkers or clients, the greeting often appears at the first work-related interaction of the year.

– With friends, it may be said casually even days later.

This is why native speakers rarely think in terms of “until when,” but instead think in terms of when and with whom.

For many learners, this can feel unusual.

In fact, it often feels like Japanese speakers say

「明けましておめでとう」

for a much longer period than people say “Happy New Year” in other languages.

This is not because Japanese has a longer “New Year season,”

but because greetings are tied to social timing and first contact, not just the calendar.


Before Looking at Variations: One Important Rule

Before exploring different expressions, it is important to understand one core idea:

Japanese New Year greetings work as sets rather than isolated phrases.

This means:

  • politeness level matters
  • casual and formal forms should not be mixed
  • expressions should match the relationship and situation

With this in mind, we can now look at the actual variations of
「明けましておめでとう」 and 「よろしくお願いします」
and how they are naturally combined.

👉 The next section breaks these expressions down by level, tone, and usage.


Variations of “明けましておめでとう”

Tone, Level, and Natural Combinations

Japanese New Year greetings change depending on politeness level, relationship, and context.
There is no single “correct” expression — what matters is choosing forms that match each other.

Variations of New Year Greetings (from casual to formal)

LevelJapaneseEnglishNuance
Very casualあけおめ/ことよろHappy New Year / Cheers for this yearSlang, spoken only, close friends
Casual明けましておめでとう
今年もよろしく
Happy New Year / Let’s get along this yearFriendly, relaxed
Polite明けましておめでとうございます
今年もよろしくお願いします
Happy New Year / I look forward to working with you this yearStandard polite
Very polite明けましておめでとうございます
今年もよろしくお願いいたします
Happy New Year / I respectfully look forward to working with youFormal, business use
Most formal (written)新年明けましておめでとうございます
本年もよろしくお願いいたします
Happy New Year / I respectfully look forward to your continued support this yearCeremonial, official writing

Main Variations of “明けましておめでとう”

🔹 Very Casual (spoken, close friends only)

あけおめ
Meaning: “Happy New Year” (shortened, slang-like)
Nuance:

  • very casual
  • spoken language only
  • used with close friends of the same generation
  • not used in writing or formal settings

🔹 Casual / Neutral

明けましておめでとう
Meaning: “Happy New Year”
Nuance:

  • neutral and friendly
  • safe in casual conversations
  • often used with friends, classmates, neighbors

🔹 Formal / Polite

明けましておめでとうございます
Meaning: “Happy New Year” (polite)
Nuance:

  • polite and standard
  • used at work
  • used in formal emails
  • used with people you are not close to

🔹 Very Formal (written / ceremonial)

新年明けましておめでとうございます
Meaning: “Happy New Year” (very formal)
Nuance:

  • more formal and ceremonial
  • often seen in written greetings, announcements, official messages
  • sounds stiff in everyday conversation

Variations of “よろしくお願いします” (Often Used Together)

New Year greetings are very often followed by a second phrase about the coming year.

🔹 Very Casual

ことよろ
(short for 今年もよろしく)
Nuance:

  • extremely casual
  • used only among close friends
  • spoken language only

🔹 Casual / Neutral

今年もよろしく
Meaning: “Let’s get along again this year”
Nuance:

  • friendly and relaxed
  • common in casual conversation

🔹 Polite

今年もよろしくお願いします
Meaning: “I look forward to working with you this year”
Nuance:

  • polite and versatile
  • common in workplaces and polite conversations

🔹 Very Polite / Formal

今年もよろしくお願いいたします
本年もよろしくお願いいたします

Nuance:

  • very polite and formal
  • commonly used in business emails and official messages
  • 本年 sounds more formal and written than 今年

今年 vs 本年 (Quick Explanation)

  • 今年: neutral and conversational
    • used in speech and polite everyday communication
  • 本年: formal and written
    • used mainly in business emails, announcements, and official texts

In most spoken situations, 今年 is preferred.
In formal writing, 本年 is often chosen to sound more professional.


Why2 Point: Level Matching Matters

本年 is a formal, written-oriented word.
Because of this, it usually appears only with higher politeness levels, such as:

  • 本年もよろしくお願いいたします
  • 本年もよろしくお願い申し上げます

The following combinations sound unnatural, because the level does not match:

  • ❌ 本年もよろしく
  • ❌ 本年もよろしくお願いします

In Japanese, greetings are not built word by word.
They work as level-matched sets.

Choosing 本年 automatically raises the formality of the entire expression.


🔹 Politest / Honorific (Very Formal)

今年もよろしくお願い申し上げます
本年もよろしくお願い申し上げます

Nuance:

  • extremely polite and honorific
  • used in formal business emails, official letters, and ceremonial messages
  • often addressed to clients, superiors, or organizations
  • rarely used in everyday conversation

Key Point

  • お願い申し上げます is a humble (謙譲語) expression
  • it places the speaker lower and shows strong respect toward the recipient

今年 vs 本年

  • 今年: formal but still closer to spoken usage
  • 本年: more formal and clearly written-oriented

In most cases:

  • 本年もよろしくお願い申し上げます
    sounds the most formal and business-like.

This level is not about sounding “better,”
but about matching institutional distance and formality.


Important Point: Match the Politeness Level

In Japanese, it is important to keep the same politeness level within one greeting.

Natural combinations:

  • あけおめ + ことよろ
  • 明けましておめでとう + 今年もよろしく
  • 明けましておめでとうございます + 今年もよろしくお願いします
  • 新年明けましておめでとうございます + 今年もよろしくお願いいたします

Unnatural combinations mix levels and can sound strange or awkward.

👉 Japanese greetings are not about choosing “the best” phrase, but about choosing matching levels.


Key Takeaway

There is no fixed deadline or single correct phrase.
What matters is:

  • your relationship
  • the situation
  • and whether the expressions match each other naturally

This is why Japanese New Year greetings follow social context, not strict rules.


5. What Sounds Natural in Writing vs Speaking

Many learners struggle not with the phrase itself, but with where and how it is used.
Japanese New Year greetings behave differently in writing and speaking.

Emails and Messages (Writing)

In written communication, formal forms remain acceptable for a longer time.

  • Business emails
  • Polite personal messages
  • First contact of the year

Even in mid or late January, formal greetings still sound natural if there is context.

Examples:

明けましておめでとうございます。
本年もどうぞよろしくお願いいたします。
“Happy New Year. I look forward to working with you again this year.”

遅ればせながら、明けましておめでとうございます。
今年もよろしくお願いします。
“Belatedly, Happy New Year. I look forward to this year as well.”

In writing, acknowledging timing matters more than the date itself.


Speaking (Conversation)

In spoken Japanese, greetings are more sensitive to timing and relationship.

  • Early January → greeting is expected
  • After some time → greeting depends on closeness and situation
  • Casual conversations adjust more quickly than formal ones

Examples:

あ、今年初めて会ったね。明けましておめでとう。
“Oh, this is the first time we’ve met this year. Happy New Year.”

遅くなったけど、明けましておめでとう!
“It’s a bit late, but Happy New Year!”

Spoken greetings rely more on shared understanding than on fixed expressions.


Key Point

  • Writing favors politeness and completeness
  • Speaking favors timing and relationship
  • Context can make a greeting natural even later in January

Japanese does not treat New Year greetings as expired phrases.
They remain usable as long as the situation supports them.


6. Common Learner Mistakes

Here are the most common misunderstandings learners have:

  • ❌ Thinking 「明けましておめでとう」 expires on January 3
    → It does not. Usage depends on first contact and context.
  • ❌ Worrying too much about being “late”
    → Native speakers often soften the greeting instead of avoiding it.
  • ❌ Using あけおめ in inappropriate contexts
    → This form is for close friends only, not emails, work, or polite situations.

Japanese New Year greetings are not about rules.
They are about reading the situation and matching the level.


. Summary

There is no fixed deadline for saying
「明けましておめでとう(ございます)」.

What matters more than dates is social context:

  • whether it is your first interaction of the year
  • how close you are to the other person
  • and which level of politeness fits the situation

New Year greetings in Japanese reflect relationships, not rigid rules.

Japanese greetings are about connection, not calendars.

8. Podcast & Lesson (Soft CTA)

If you enjoy this kind of explanation and want to go deeper:

🎧 Podcast
Real Japanese examples explained slowly, with context and natural usage.
Spotify: https://open.spotify.com/show/1n1c0UpnnmZ9oQ92DG3OpM?si=LqS_3ubgQje_AetuPsc51Q
Apple Podcasts: https://podcasts.apple.com/us/podcast/why-why-nihongo/id1867076413

📘 Patreon
https://www.patreon.com/cw/whywhynihongo

On Patreon, you can read a simpler Japanese version of this article in easy, learner-friendly Japanese,
along with structured lessons and deeper grammar explanations beyond textbooks.

How Long Can You Still Say “明けましておめでとう”?

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