In English, time goes like this:

IN (general) → ON (more specific) → AT (very specific)

👉 Think:

• IN = big time
• ON = one day
• AT = exact moment

IN → general time 🗓️

We use IN for longer time.

Examples:

• My birthday is in January.
• She was born in 1995.
• It is hot in summer.
• I will call you in 10 minutes.

ON → more specific time 📅

We use ON for days and dates.

Examples:

• I work on Monday.
• My birthday is on July 10th.
• We get paid on the 20th.

AT → very specific time ⏰

We use AT for exact time.

Examples:

• I wake up at 6 a.m.
• The class starts at 10 o’clock.
• I left the party at midnight.

No preposition ❌

We do not use IN / ON / AT with:

today – tomorrow – yesterday – tonight
last – next – this – every

Examples:

• I have class today.
• The party is next Friday.

Practice 1 ✏️

Choose: IN, ON, AT

1. My birthday is ___ May.
2. I work ___ Monday.
3. The class starts ___ 8 a.m.
4. She was born ___ 2003.
5. We have a test ___ Friday.

Practice 2 ✏️

Choose: IN, ON, AT, or Ø (no preposition)

1. I’m busy ___ today.
2. We travel ___ December.
3. The movie starts ___ 9:30.
4. I stayed home ___ last weekend.
5. Let’s talk ___ the moment.

Practice 3 ✏️ (Speaking / Writing)

Complete with your information:

• I was born ___ ________.
• My English class is ___ ________.
• I wake up ___ ________.

✅ Answer Key

Practice 1

1. My birthday is in May.
2. I work on Monday.
3. The class starts at 8 a.m.
4. She was born in 2003.
5. We have a test on Friday.

Practice 2

1. I’m busy Ø today.
2. We travel in December.
3. The movie starts at 9:30.
4. I stayed home Ø last weekend.
5. Let’s talk at the moment.