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Vietnamese in 30 Weeks · Phase 1: Foundation

Numbers
& Time

Số đếm và thời gian

Master all numbers, tell time, express dates, and use basic time words. Essential for every real-world interaction — from ordering food to making plans.

Numbers 1–1,000,000 Telling Time Days & Months Time Expressions
~50
Core Words
5
Pimsleur Lessons
45
Min / Day
mấy giờ rồi?
--:--:--
12
3
6
9
Section 01 · Core Numbers

Numbers 1–10
The Foundation of All Counting

Memorize these ten words cold — every larger number is built from them. Vietnamese number words are short, regular, and logical. Click each card to flip it and see the pronunciation guide.

💡
Pimsleur Tip: Lessons 11–15

Your Pimsleur lessons this week open with time expressions — "lúc mấy giờ?" and clock-reading patterns. The numbers you learn here feed directly into every Pimsleur time dialogue. Do Lesson 11 today, then come back and practice the number cards above.

Numbers 1–20 · Full Reference Click a row to highlight
NumberVietnamesePronunciation guideNotes
🔑
The Counting Rule You Need Right Now

Vietnamese counting from 1–10 is completely regular. After that: 11 = mười một (ten-one), 12 = mười hai (ten-two), and so on. At 21, you say: hai mươi mốt — notice mươi (no tone mark) replaces mười (falling tone) in 20s, 30s, etc. This is the only major irregularity you'll encounter.

Section 02 · Large Numbers

100 to 1,000,000
Prices, Distances, Years

Vietnamese numbers scale logically. Once you know the building blocks — trăm (hundred), nghìn/ngàn (thousand), triệu (million) — you can say any number. Use the builder below to hear how any number is constructed.

Powers of 10 · Building Blocks
ValueVietnameseNotes
🔧 Interactive Number Builder · Drag the sliders to build any number
1,234,567
1
234
567
21–100 · Key Numbers Reference
NumberVietnamesePatternWatch out for
⚠️
The Tricky Ones: 5 and 1 in Compound Numbers

Lăm replaces năm (5) when it's the units digit after a tens digit: 25 = hai mươi lăm (NOT hai mươi năm). Mốt replaces một (1) in the same position: 21 = hai mươi mốt. But 11 = mười một (uses một, not mốt). These two swaps catch almost every learner.

💰
Vietnamese Đồng — Where Numbers Get Real

Vietnamese currency uses large numbers constantly. A bowl of phở costs 50,000–80,000 đồng. A hotel room might be 500,000–2,000,000 đồng/night. Practice saying: năm mươi nghìn (50,000), một triệu (1,000,000). You'll use these numbers from day one in Vietnam.

Section 03 · Number Quiz

Number Recognition
Quiz Yourself

See a number, pick the Vietnamese word — or see a Vietnamese word and pick the number. Both directions build fluency. Try to get 8/10 before moving on.

🎯 Number Recognition Quiz 0 / 0
🏡
Practice Counting Objects Around You — All Day

This is the Week 4 tip from the curriculum: whenever you pick up your phone, count how many apps are open. When you eat, count bites. When you walk, count steps in sets of ten. Narrate in Vietnamese: một, hai, ba, bốn, năm... This builds number fluency faster than any drill because it's tied to real actions.

Section 04 · Telling Time

Mấy giờ rồi?
What time is it?

Vietnamese tells time simply and logically. The core structure is: [number] giờ [minutes] phút. Drag the sliders to set a time and see exactly how to say it in Vietnamese.

Time Grammar · The Pattern
Basic time
[số] giờ
ba giờ = 3 o'clock
With minutes
[số] giờ [phút] phút
ba giờ mười lăm phút = 3:15
30 minutes
[số] giờ rưỡi
rưỡi = half past
"Before" the hour
[số] giờ kém [phút]
ba giờ kém năm = 2:55
AM / PM
sáng / chiều / tối
morning / afternoon / evening
Asking time
Mấy giờ rồi?
What time is it?
--:--
9
30
🌅
buổi sáng
morning · 5am–11am
☀️
buổi trưa
noon · 11am–1pm
🌤️
buổi chiều
afternoon · 1pm–6pm
🌙
buổi tối
evening · 6pm–midnight
🌃
ban đêm
night · midnight–5am
🌞
giữa trưa
midday / high noon
🕐 Read the Clock Quiz · Say the time in Vietnamese 0 / 0
What time does this clock show?
🎧
VietnamesePod101 Numbers Unit — What's Covered

The Numbers unit on VietnamesePod101 covers: counting 1–100, prices at markets, asking what time it is, and scheduling appointments. Each lesson has a dialogue to listen to 3 times before reading the transcript. This week's Pimsleur lessons (11–15) overlap significantly — the two reinforce each other perfectly.

Section 05 · Time Expressions

Hôm nay, Ngày mai
Today, Tomorrow & Beyond

Vietnamese time expressions are essential from day one. These words connect your vocabulary into real sentences. Learn them in clusters — past, present, future — not as a random list.

Example Sentences Using Time Expressions
📅
The Pattern: Time Word + Subject + Verb

Vietnamese time expressions usually come first in the sentence: Hôm nay tôi ăn phở. (Today I eat pho.) Notice the time word anchors the sentence before the pronoun and verb. This is the opposite of "I eat pho today" in English. Get this word order right from the start.

Section 06 · Days of the Week

Thứ Hai đến Chủ Nhật
Monday to Sunday

Vietnamese days are numbered, not named — except Sunday. Monday = Thứ Hai (Second Day), Tuesday = Thứ Ba (Third Day), all the way to Saturday = Thứ Bảy (Seventh Day). Sunday breaks the pattern: Chủ Nhật (Lord's Day — a Christian influence). Click a day to expand its details.

🧠
The Numbering Logic That Makes Days Easy

Monday through Saturday follows a perfect sequence: thứ hai (2), thứ ba (3), thứ tư (4), thứ năm (5), thứ sáu (6), thứ bảy (7). If you know numbers 2–7, you already know six of the seven days. The only exception is Chủ Nhật (Sunday). This is one of the most learner-friendly features of Vietnamese.

Using Days in Sentences
Section 07 · Months & Seasons

Tháng 1 đến Tháng 12
January to December

Just like days, Vietnamese months are numbered: tháng một (month one) through tháng mười hai (month twelve). Even simpler than English — no names to memorize, just numbers. The current month is highlighted below.

Mùa khô
Dry Season (Southern Vietnam)
tháng 11 – tháng 4
Hot and rainless. Peak tourist season. Temperatures 25–35°C. Best time for travel in the south.
Mùa mưa
Rainy Season (Southern Vietnam)
tháng 5 – tháng 10
Daily afternoon rains, lush green landscapes. Still hot (28–32°C). Life continues normally — locals carry umbrellas.
Mùa đông
Winter (Northern Vietnam)
tháng 11 – tháng 3
Cool and foggy in Hà Nội (15–20°C). Can be cold in the mountains. Very different from the south's weather.
Mùa xuân
Spring (Northern Vietnam)
tháng 2 – tháng 4
Warm and pleasant. Tết Nguyên Đán (Lunar New Year) happens in late January or February. Most festive time of year.
🎊
Tết — The Most Important Date in Vietnamese Culture

Tết Nguyên Đán (Lunar New Year) falls on different dates each year in January or February. It's not month 1, day 1 of the solar calendar — it follows the lunar calendar. You'll hear Tết constantly in Vietnamese conversation. The correct phrase is: Chúc mừng năm mới! (Happy New Year!)

Section 08 · Expressing Dates

Saying Full Dates
Ngày / Tháng / Năm

Vietnamese date order is the same as in most of continental Europe: Day → Month → Year. The key words are ngày (day), tháng (month), and năm (year). Click the buttons to practice different dates.

📅 Date Practice · Click a date to see how to say it
--/--/----
Date Vocabulary — The Building Blocks
WordMeaningExampleNotes
ngàydayngày 15Always comes before the number in dates
thángmonththáng baMonth 3 = March; tháng + number
nămyearnăm 2025Read digits individually: hai không hai lăm
hôm naytodayhôm nay là ngày mấy?What date is today?
thứday-of-week markerthứ haithứ + day number (2–7)
ngày sinhbirthday / date of birthngày sinh của bạn?What's your birthday?
tuầnweektuần này, tuần sauthis week, next week
Section 09 · Flashcards

Vocabulary Flashcards
Week 4 Core Deck

Flip through the Week 4 cards. Rate yourself honestly — "Again" if you hesitated more than 2 seconds. These align with the Anki Numbers Deck recommended in the curriculum.

Tap to reveal
Card 1 of 30
🃏
Anki Numbers Deck — Set It Up Today

The curriculum recommends a dedicated Anki numbers deck for Week 4. On AnkiWeb, search for "Vietnamese numbers" — there are several good pre-made decks. Alternatively, add the Week 4 vocab from this page into your Core 2000 deck as a special tagged subset. Target: 15 new cards/day this week, reviewed every morning.

Section 10 · Sentence Practice

Fill in the Blank
Numbers & Time in Context

Real language practice: type the missing Vietnamese word or number. These sentences use patterns from Pimsleur Lessons 11–15 and the VietnamesePod101 Numbers unit.

✍️ SENTENCE COMPLETION · Type the Vietnamese answer
Section 11 · Vocabulary Tracker

Week 4 Core Vocabulary
Track What You Know

Check off each word as you feel confident with it — meaning, usage, and rough pronunciation. Aim to check off all 40 before starting Week 5.

Week 4 Vocabulary 0 / 40 learned
Section 12 · This Week's Plan

Daily Study Schedule
Week 4 — Numbers & Time

Week 4 introduces number drills alongside your existing Pimsleur + VietnamesePod101 routine. Check off activities as you complete them. The counting objects habit (see the Tip below) is done all day, every day.

The All-Day Number Habit

From the Week 4 curriculum tip: "Practice counting objects around you all day." Set a phone reminder every 2 hours. When it goes off, count 10 objects near you in Vietnamese: một, hai, ba... This is passive language training that takes zero extra study time and builds number fluency faster than any drill.

Section 13 · Resources

Week 4 Resources
Your Toolkit

Three core resources this week. Pimsleur and VietnamesePod101 are your daily anchors. The Anki numbers deck is the new addition — set it up today.

Audio · Lessons 11–15 Paid Essential
Pimsleur Vietnamese
Lessons 11–15 this week focus on telling time, making appointments, and asking about schedules. You'll get "Lúc mấy giờ?" (At what time?) and clock vocabulary from day one. Do one lesson per day — 30 minutes while walking or commuting. Never skip.
📍 Lessons 11–15 · ~30 min/day
Course · Numbers Unit Freemium Essential
VietnamesePod101
The Numbers unit covers counting, prices, and basic calendar vocabulary. Each dialogue has slow + natural speed audio. Listen 3× before reading transcripts. Combine with the Pimsleur lessons — they cover nearly the same vocabulary from different angles, reinforcing each other.
📍 Numbers Unit · All lessons
Flashcard Deck Free New This Week
Anki: Numbers Deck
Search AnkiWeb for "Vietnamese numbers" — there are several solid pre-made decks with audio. Download one today. Add 15 new cards/day (more than your usual 10 — numbers are short and highly repeatable). Keep your Core 2000 reviews running alongside it.
📍 Set up today · 15 cards/day
Practice Technique Free
Object Counting Habit
All day, every day: count things in Vietnamese. Steps on stairs, items in your bag, people in a room, seconds in a timer. Set phone reminders every 2 hours as a trigger. This habit, done for 7 days, will make 1–20 completely automatic — better than any drilling session.
📍 All-day habit · no extra time
Supplement Free
Google Translate Camera
Point your phone camera at prices, menus, receipts, and signs when you're out. This converts real-world number practice into a game — see a price, try to read it before the translation appears. Best used at supermarkets, restaurants, or any shop.
📍 Use when out and about
YouTube Free
Vietnamese Number Videos
Search: "Vietnamese numbers 1–1000 pronunciation" for a dedicated listen-and-repeat session. Best channels: Learn Vietnamese with Annie, Tiếng Việt Ơi. Watch once with subtitles, once without — pause and repeat each number cluster before continuing.
📍 20 min · once this week
Week 4 Completion

Can You Do These?
Before Moving to Week 5

Check off each item as you genuinely master it. Week 5 (Core Verbs & Basic Sentences) assumes you can count reliably and tell time.

🕐
Week 4 Complete!
Numbers and time are the skeleton of real conversation. You can now make plans, shop, ask what time something happens, and navigate almost any time-based interaction. This vocabulary will recur in every single week of the curriculum.
Up next · Week 5
Core Verbs & Basic Sentences
Động từ cơ bản
💡 Tip for Week 5: Start a daily habit of saying "I [verb]" in Vietnamese. Tôi ăn. Tôi uống. Tôi đi. Simple, but it builds the SVO pattern that underpins all Vietnamese grammar.