IST to Karachi
-0h 30mIST
ISTSOURCEKarachi
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 Karachi
WikipediaKarachi operates on Pakistan Standard Time (PKT), UTC+5. As Pakistan's financial hub and largest port city, Karachi time drives South Asian commerce.
Karachi is one of the fastest-growing megacities in the world.
Comparing Time Zones: IST and Karachi
IST runs on India Standard Time (IST) at UTC+05:30. Karachi runs on Pakistan Standard Time (PKT) at UTC+05:00. That puts IST 30 minutes behind Karachi — a difference of -0h 30m at the current offsets.
In practice, when it is 9:00 AM in IST it is 8:30 AM in Karachi. Midnight in IST is 11:30 PM in Karachi. Neither zone observes daylight saving time, so the offset between them stays constant all year.
IST to Karachi time conversion table
| IST (IST) | Karachi (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 IST to Karachi time
- Scheduling a call from IST to Karachi: a 10:00 AM start in IST lands at 9:30 AM in Karachi, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both IST and Karachi 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.
- Coordinating a IST-based team with Karachi contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.
- 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 IST and need Karachi 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 IST and Karachi
Both IST and Karachi 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
IST and Karachi share 7 hours of working-hours overlap (9:30 AM–5:00 PM IST), so scheduling a live meeting is straightforward.
IST is 30 minutes behind Karachi (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 IST and Karachi?
IST (IST, UTC+05:30) is 30 minutes behind Karachi (PKT, UTC+05:00). The gap is currently -0h 30m.
How do I convert IST time to Karachi time?
Add -0h 30m to IST local time. For example, 9:00 AM in IST is 8:30 AM in Karachi.
What time is it in Karachi right now?
Karachi 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 IST.
What is the best time to call Karachi from IST?
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, IST or Karachi?
IST is 30 minutes behind Karachi. When it is 12:00 PM in IST it is 11:30 AM in Karachi.
Do IST and Karachi use different time zones?
IST uses IST at UTC+05:30, while Karachi (Pakistan) uses PKT at UTC+05:00. The IANA identifiers are Asia/Kolkata and Asia/Karachi.
Does daylight saving time affect the IST–Karachi difference?
Neither zone observes daylight saving time, so the -0h 30m offset between IST and Karachi is fixed all year.
Which other cities share IST's time zone?
IST also covers Mumbai, Delhi, Bangalore, Kolkata, Chennai, Hyderabad, Pune, Ahmedabad and 4 more.
Which countries use IST, IST's zone?
IST is used in India, Sri Lanka.
Is there a day difference between IST and Karachi?
Not normally. The -0h 30m gap only pushes the date over the previous day.
What is the time difference between IST and Karachi?
Karachi is -0h 30m from IST.
What timezone is IST in?
IST operates on its local timezone.
What timezone is Karachi in?
Karachi operates on Pakistan Standard Time (PKT), UTC+5. As Pakistan's financial hub and largest port city, Karachi time drives South Asian commerce.
What are the business hours in Karachi?
Standard business hours in Karachi are 9:00 AM - 5:00 PM PKT.
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 IST, what time is it in Karachi?
When it is 12:00 AM (midnight) in IST (IST), it is -0h 30m later in Karachi (PKT).
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