Colombo to Pakistan
-0h 30mColombo
ISTSOURCEPakistan
PKTGreen rows indicate typical business hours (9 AM - 5 PM)
IST and PKT on the World Map
The map below highlights the IST (India Standard Time) and PKT (Pakistan Standard Time) timezone regions across the globe.
IST – India Standard Time
UTC+05:30India Standard Time (IST) is the time zone for India and Sri Lanka, 5 hours and 30 minutes ahead of UTC.
- •India is 10 hours 30 minutes ahead of EST and 5 hours 30 minutes ahead of GMT.
- •India uses a single time zone despite spanning 30° of longitude.
- •IST is one of only a handful of time zones with a 30-minute offset.
- •IST is the most populous single time zone in the world with over 1.4 billion people.
- •The Bombay Stock Exchange (BSE) and National Stock Exchange (NSE) operate on IST.
PKT – Pakistan Standard Time
UTC+05:00Pakistan Standard Time (PKT) is the time zone for Pakistan, 5 hours ahead of UTC.
- •Pakistan does not observe daylight saving time.
- •Karachi is one of the world's most populous cities.
- •PKT is the same offset as Uzbekistan (UZT) and Yekaterinburg (YEKT).
About Colombo
WikipediaColombo operates on Sri Lanka Time (SLST), UTC+5:30. Sharing India's timezone, Colombo is a key South Asian trade and tourism hub.
Sri Lanka Standard Time (SLST) uses UTC+5:30, same offset as India.
Time Conversion Guide: Colombo to Pakistan
Colombo runs on India Standard Time (IST) at UTC+05:30. Pakistan runs on Pakistan Standard Time (PKT) at UTC+05:00. That puts Colombo 30 minutes behind Pakistan — a difference of -0h 30m at the current offsets.
In practice, when it is 9:00 AM in Colombo it is 8:30 AM in Pakistan. Midnight in Colombo is 11:30 PM in Pakistan. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Colombo to Pakistan time conversion table
| Colombo (IST) | Pakistan (PKT) | Day |
|---|---|---|
| 12:00 AM | 11:30 PM | previous day |
| 6:00 AM | 5:30 AM | same day |
| 7:00 AM | 6:30 AM | same day |
| 8:00 AM | 7:30 AM | same day |
| 9:00 AM | 8:30 AM | same day |
| 12:00 PM | 11:30 AM | same day |
| 3:00 PM | 2:30 PM | same day |
| 5:00 PM | 4:30 PM | same day |
| 6:00 PM | 5:30 PM | same day |
| 9:00 PM | 8:30 PM | same day |
Why people convert Colombo to Pakistan time
- Scheduling a call from Colombo to Pakistan: a 10:00 AM start in Colombo lands at 9:30 AM in Pakistan, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Colombo and Pakistan are inside the 9-to-5 working day between 9:30 AM and 5:00 PM IST time (9:00 AM–4:30 PM PKT). That is roughly 7 hours 30 minutes of usable overlap.
- Keeping family and friends in sync: knowing that 8:00 PM in Colombo is 7:30 PM in Pakistan makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM IST" is unambiguous; "3 PM" across a -0h 30m gap is not.
- Block 9:30 AM–5:00 PM IST as the recurring meeting window if you work primarily from Colombo and need Pakistan colleagues present.
About IST (India Standard Time)
India Standard Time (IST) is the time observed throughout India and Sri Lanka. It is based on the 82.5°E meridian, passing through Mirzapur in Uttar Pradesh. India uses a single time zone despite spanning roughly 30° of longitude, which has been debated. IST does not observe daylight saving time. India is the world's most populous country, making IST one of the most-used time zones globally. The IT outsourcing industry and call centers operate primarily on IST, making the EST-to-IST conversion one of the most searched timezone conversions.
About PKT (Pakistan Standard Time)
Pakistan Standard Time (PKT) is the time zone used throughout Pakistan. PKT does not observe daylight saving time. Pakistan is the 5th most populous country in the world.
Best time to call between Colombo and Pakistan
Both Colombo and Pakistan sit inside the 9 AM – 5 PM working day between 9:30 AM–5:00 PM IST, which is 9:00 AM–4:30 PM PKT. That gives roughly 7 hours and 30 minutes of shared time — the safest window for a live call or meeting.
Business hours overlap
Colombo and Pakistan share 7 hours of working-hours overlap (9:30 AM–5:00 PM IST), so scheduling a live meeting is straightforward.
Colombo is 30 minutes behind Pakistan (IST UTC+05:30 → PKT UTC+05:00). The shared working window is 9:30 AM–5:00 PM IST. Remember to re-check around daylight-saving transitions.
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between Colombo and Pakistan?
Colombo (IST, UTC+05:30) is 30 minutes behind Pakistan (PKT, UTC+05:00). The gap is currently -0h 30m.
How do I convert Colombo time to Pakistan time?
Add -0h 30m to Colombo local time. For example, 9:00 AM in Colombo is 8:30 AM in Pakistan.
What time is it in Pakistan right now?
Pakistan uses PKT at UTC+05:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -0h 30m offset from Colombo.
What is the best time to call Pakistan from Colombo?
Call between 9:30 AM and 5:00 PM IST — that maps to 9:00 AM–4:30 PM PKT and keeps both parties inside the working day.
Which is behind, Colombo or Pakistan?
Colombo is 30 minutes behind Pakistan. When it is 12:00 PM in Colombo it is 11:30 AM in Pakistan.
Do Colombo and Pakistan use different time zones?
Colombo (Sri Lanka) uses IST at UTC+05:30, while Pakistan (Pakistan) uses PKT at UTC+05:00. The IANA identifiers are Asia/Colombo and Asia/Karachi.
Does daylight saving time affect the Colombo–Pakistan difference?
Neither zone observes daylight saving time, so the -0h 30m offset between Colombo and Pakistan is fixed all year.
Which other cities share Colombo's time zone?
IST also covers Mumbai, Delhi, Bangalore, Kolkata, Chennai, Hyderabad, Pune, Ahmedabad and 4 more.
Which countries use IST, Colombo's zone?
IST is used in India, Sri Lanka.
Is there a day difference between Colombo and Pakistan?
Not normally. The -0h 30m gap only pushes the date over the previous day.
What is the time difference between Colombo and Pakistan?
Pakistan is -0h 30m from Colombo.
What timezone is Colombo in?
Colombo operates on Sri Lanka Time (SLST), UTC+5:30. Sharing India's timezone, Colombo is a key South Asian trade and tourism hub.
What timezone is Pakistan in?
Pakistan operates on its local timezone.
What are the business hours in Colombo?
Standard business hours in Colombo are 9:00 AM - 5:00 PM IST.
Which countries use IST (India Standard Time)?
IST is used in India, Sri Lanka.
Does IST observe daylight saving time?
No, IST does not observe daylight saving time and remains at UTC+05:30 year-round.
What are some interesting facts about IST?
India is 10 hours 30 minutes ahead of EST and 5 hours 30 minutes ahead of GMT. India uses a single time zone despite spanning 30° of longitude.
Which cities are in the PKT timezone?
Major cities in the PKT timezone include Karachi, Lahore, Islamabad, Rawalpindi, Faisalabad, Peshawar.
What is the UTC offset for PKT?
Pakistan Standard Time (PKT) is at UTC+05:00.
What should I know about the PKT timezone?
Pakistan does not observe daylight saving time. Karachi is one of the world's most populous cities.
When is it midnight in Colombo, what time is it in Pakistan?
When it is 12:00 AM (midnight) in Colombo (IST), it is -0h 30m later in Pakistan (PKT).
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