PHT to KST
+1hPHT
PHTSOURCEKST
KSTGreen rows indicate typical business hours (9 AM - 5 PM)
PHT and KST on the World Map
The map below highlights the PHT (Philippine Time) and KST (Korea Standard Time) timezone regions across the globe.
PHT – Philippine Time
UTC+08:00Philippine Time (PHT, UTC+08:00) is the time zone for the Philippines, 8 hours ahead of UTC.
- •Philippine Time does not observe daylight saving, so UTC+08:00 is fixed all year.
- •PHT shares its offset with China, Hong Kong, Singapore and Malaysia.
- •Manila is one of the largest outsourcing hubs in the world.
- •The Philippines spans one time zone despite being an archipelago of over 7,600 islands.
KST – Korea Standard Time
UTC+09:00Korea Standard Time (KST) is the time zone for South Korea, 9 hours ahead of UTC.
- •South Korea does not observe daylight saving time.
- •Seoul is home to Samsung, LG, and Hyundai headquarters.
- •KST is the same offset as JST (UTC+09:00).
Understanding the +1h Gap: PHT vs KST
PHT runs on Philippine Time (PHT) at UTC+08:00. KST runs on Korea Standard Time (KST) at UTC+09:00. That puts PHT 1 hour ahead of KST — a difference of +1h at the current offsets.
In practice, when it is 9:00 AM in PHT it is 10:00 AM in KST. Midnight in PHT is 1:00 AM in KST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
PHT to KST time conversion table
| PHT (PHT) | KST (KST) | Day |
|---|---|---|
| 12:00 AM | 1:00 AM | same day |
| 6:00 AM | 7:00 AM | same day |
| 7:00 AM | 8:00 AM | same day |
| 8:00 AM | 9:00 AM | same day |
| 9:00 AM | 10:00 AM | same day |
| 12:00 PM | 1:00 PM | same day |
| 3:00 PM | 4:00 PM | same day |
| 5:00 PM | 6:00 PM | same day |
| 6:00 PM | 7:00 PM | same day |
| 9:00 PM | 10:00 PM | same day |
Why people convert PHT to KST time
- Scheduling a call from PHT to KST: a 10:00 AM start in PHT lands at 11:00 AM in KST, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both PHT and KST are inside the 9-to-5 working day between 9:00 AM and 4:00 PM PHT time (10:00 AM–5:00 PM KST). That is roughly 7 hours of usable overlap.
- Booking travel or deliveries: tracking KST local time against PHT keeps pickup windows and arrival estimates honest across the +1h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM PHT" is unambiguous; "3 PM" across a +1h gap is not.
- Block 9:00 AM–4:00 PM PHT as the recurring meeting window if you work primarily from PHT and need KST colleagues present.
About PHT (Philippine Time)
Philippine Time (PHT) is fixed at UTC+08:00 all year. The Philippines has not observed daylight saving time since 1978, apart from a brief trial in 1990. PHT shares its offset with China Standard Time, Hong Kong Time, Singapore Time, Malaysian Time and Australian Western Standard Time, which makes Manila a convenient bridge for scheduling across East and Southeast Asia. As one of the world's largest centres for business process outsourcing, Manila keeps overlapping hours with both Australia and, on early shifts, the United States, and its contact-centre schedules are usually planned around Manila local time.
About KST (Korea Standard Time)
Korea Standard Time (KST) is the time zone used in South Korea. It shares the same UTC offset as Japan Standard Time but is a distinct time zone. South Korea does not observe daylight saving time. Seoul, the capital, is a major global tech and business hub.
Best time to call between PHT and KST
Both PHT and KST sit inside the 9 AM – 5 PM working day between 9:00 AM–4:00 PM PHT, which is 10:00 AM–5:00 PM KST. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
PHT and KST share 7 hours of working-hours overlap (9:00 AM–4:00 PM PHT), so scheduling a live meeting is straightforward.
PHT is 1 hour ahead of KST (PHT UTC+08:00 → KST UTC+09:00). The shared working window is 9:00 AM–4:00 PM PHT. 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 PHT and KST?
PHT (PHT, UTC+08:00) is 1 hour ahead of KST (KST, UTC+09:00). The gap is currently +1h.
How do I convert PHT time to KST time?
Add +1h to PHT local time. For example, 9:00 AM in PHT is 10:00 AM in KST.
What time is it in KST right now?
KST uses KST at UTC+09:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +1h offset from PHT.
What is the best time to call KST from PHT?
Call between 9:00 AM and 4:00 PM PHT — that maps to 10:00 AM–5:00 PM KST and keeps both parties inside the working day.
Which is ahead, PHT or KST?
PHT is 1 hour ahead of KST. When it is 12:00 PM in PHT it is 1:00 PM in KST.
Does daylight saving time affect the PHT–KST difference?
Neither zone observes daylight saving time, so the +1h offset between PHT and KST is fixed all year.
Which other cities share PHT's time zone?
PHT also covers Manila, Quezon City, Davao City, Cebu City, Zamboanga.
Which countries use PHT, PHT's zone?
PHT is used in Philippines.
Is there a day difference between PHT and KST?
Not normally. The +1h gap only pushes the date over for late-evening times.
What is the time difference between PHT and KST?
KST is +1h from PHT.
What timezone is PHT in?
PHT operates on its local timezone.
What timezone is KST in?
KST operates on its local timezone.
Which countries use PHT (Philippine Time)?
PHT is used in Philippines.
Does PHT observe daylight saving time?
No, PHT does not observe daylight saving time and remains at UTC+08:00 year-round.
What are some interesting facts about PHT?
Philippine Time does not observe daylight saving, so UTC+08:00 is fixed all year. PHT shares its offset with China, Hong Kong, Singapore and Malaysia.
Which cities are in the KST timezone?
Major cities in the KST timezone include Seoul, Busan, Incheon, Daegu, Daejeon, Pyongyang.
What is the UTC offset for KST?
Korea Standard Time (KST) is at UTC+09:00.
What should I know about the KST timezone?
South Korea does not observe daylight saving time. Seoul is home to Samsung, LG, and Hyundai headquarters.
When is it midnight in PHT, what time is it in KST?
When it is 12:00 AM (midnight) in PHT (PHT), it is +1h later in KST (KST).
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