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Sydney to NPT

-4h 15m

Sydney

AESTSOURCE
Australia · UTC+10:00DST observed
HH12
:
MM00
  
12:00 (24-hr)
12 AM6 AM12 PM6 PM12 AM

NPT

NPT
UTC+05:45
HH07
:
MM45
  
07:45 (24-hr)
12 AM6 AM12 PM6 PM12 AM
Sydney
NPT
12:00 AM
7:45 PM-1
2:00 AM
9:45 PM-1
4:00 AM
11:45 PM-1
6:00 AM
1:45 AM
8:00 AM
3:45 AM
10:00 AM
5:45 AM
12:00 PM
7:45 AM
2:00 PM
9:45 AM
4:00 PM
11:45 AM
6:00 PM
1:45 PM
8:00 PM
3:45 PM
10:00 PM
5:45 PM

Green rows indicate typical business hours (9 AM - 5 PM)

AEST and NPT on the World Map

The map below highlights the AEST (Australian Eastern Standard Time) and NPT (Nepal Time) timezone regions across the globe.

AESTNPTSydneyMelbourneBrisbaneCanberraKathmanduPokharaLalitpurBharatpur
AEST Zone
→
NPT Zone

Explore all world timezones interactively →

AEST – Australian Eastern Standard Time

UTC+10:00

Australian Eastern Standard Time (AEST) covers eastern Australia, 10 hours ahead of UTC.

Countries in AEST
Australia (NSW, VIC, QLD, TAS, ACT)Papua New Guinea
Major Cities in AEST
SydneyMelbourneBrisbaneCanberraHobartGold Coast
Key Facts about AEST
  • •Queensland does not observe daylight saving time, staying on AEST year-round.
  • •Sydney and Melbourne switch to AEDT (UTC+11:00) in summer.
  • •The Australian Securities Exchange (ASX) operates on AEST/AEDT.
  • •AEST is 15 hours ahead of EST during winter.
Daylight Saving:Yes – switches to AEDT
Learn more about AEST on Wikipedia

NPT – Nepal Time

UTC+05:45

Nepal Time (NPT, UTC+05:45) is the time zone for Nepal — one of the few offsets in the world set on a 45-minute increment.

Countries in NPT
Nepal
Major Cities in NPT
KathmanduPokharaLalitpurBharatpurBiratnagar
Key Facts about NPT
  • •Nepal Time is UTC+05:45 — a 45-minute offset, not a whole or half hour.
  • •The 45-minute offset was adopted in 1986 to match Kathmandu's solar time.
  • •Nepal does not observe daylight saving time.
  • •Nepal is 15 minutes ahead of India, despite sharing a long open border.
Daylight Saving:No – UTC+05:45 year-round
Learn more about NPT on Wikipedia

About Sydney

Wikipedia

Sydney operates on Australian Eastern Standard Time (AEST/AEDT). As Australia's financial capital, Sydney opens global markets at the start of the business day.

Population:5.4 million
Metro:5.4 million
Business Hours:9:00 AM - 5:00 PM AEST
Currency:AUD (A$)
Stock Exchange:ASX (Australian Securities Exchange)
Key Landmarks
Sydney Opera HouseSydney Harbour BridgeBondi BeachDarling HarbourRoyal Botanic Garden
Did You Know?

Sydney is one of the first major cities to welcome the New Year.

Learn more about AEST timezone →

Sydney vs NPT: Offsets, DST and Best Call Times

Sydney runs on Australian Eastern Standard Time (AEST) at UTC+10:00. NPT runs on Nepal Time (NPT) at UTC+05:45. That puts Sydney 4 hours 15 minutes behind NPT — a difference of -4h 15m at the current offsets.

In practice, when it is 9:00 AM in Sydney it is 4:45 AM in NPT. Midnight in Sydney is 7:45 PM in NPT. Neither zone observes daylight saving time, so the offset between them stays constant all year.

Sydney to NPT time conversion table

Sydney (AEST)NPT (NPT)Day
12:00 AM7:45 PMprevious day
6:00 AM1:45 AMsame day
7:00 AM2:45 AMsame day
8:00 AM3:45 AMsame day
9:00 AM4:45 AMsame day
12:00 PM7:45 AMsame day
3:00 PM10:45 AMsame day
5:00 PM12:45 PMsame day
6:00 PM1:45 PMsame day
9:00 PM4:45 PMsame day

Why people convert Sydney to NPT time

  • Scheduling a call from Sydney to NPT: a 10:00 AM start in Sydney lands at 5:45 AM in NPT, so you can confirm the slot without doing the arithmetic yourself.
  • Finding shared working hours: both Sydney and NPT are inside the 9-to-5 working day between 1:15 PM and 5:00 PM AEST time (9:00 AM–12:45 PM NPT). That is roughly 3 hours 45 minutes of usable overlap.
  • Coordinating a Sydney-based team with NPT 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 AEST" is unambiguous; "3 PM" across a -4h 15m gap is not.
  • Block 1:15 PM–5:00 PM AEST as the recurring meeting window if you work primarily from Sydney and need NPT colleagues present.
  • Sydney: Clocks spring forward on Sat, Oct 3, 2026. Re-check this page after that date because the offset changes and so does the -4h 15m gap.

About AEST (Australian Eastern Standard Time)

Australian Eastern Standard Time (AEST) is used in the eastern states of Australia including New South Wales, Victoria, Queensland, Tasmania, and the ACT. During summer (October to April), NSW, VIC, TAS, and ACT switch to Australian Eastern Daylight Time (AEDT, UTC+11:00), while Queensland remains on AEST year-round.

About NPT (Nepal Time)

Nepal Time (NPT) runs at UTC+05:45, one of only a handful of time zones worldwide that are not a whole or half hour from UTC. Nepal set its offset to 5 hours 45 minutes ahead of UTC in 1986 to mark the country's position between the 75°E and 90°E meridians; Kathmandu's solar time sits just over 5 hours 41 minutes ahead of Greenwich, so the 45-minute offset tracks the sun more closely than either 5:30 or 6:00 would. Nepal does not observe daylight saving time, so NPT is fixed all year. The offset makes Nepal 15 minutes ahead of India Standard Time (UTC+05:30) and 2 hours 15 minutes ahead of Dubai (UTC+04:00).

Best time to call between Sydney and NPT

Both Sydney and NPT sit inside the 9 AM – 5 PM working day between 1:15 PM–5:00 PM AEST, which is 9:00 AM–12:45 PM NPT. That gives roughly 3 hours and 45 minutes of shared time — the safest window for a live call or meeting.

Business hours overlap

Sydney and NPT overlap for about 3 hours during the working day — enough for meetings if you avoid the edges of the window.

Sydney is 4 hours 15 minutes behind NPT (AEST UTC+10:00 → NPT UTC+05:45). The shared working window is 1:15 PM–5:00 PM AEST. Remember to re-check around daylight-saving transitions.

🕐 Daylight Saving Time Info

Sydney

❄ Currently in Standard Time

Standard: UTC+10:00 · DST: UTC+11:00

Clocks spring forward on Sat, Oct 3, 2026

NPT

Does not observe DST

Frequently Asked Questions

What is the time difference between Sydney and NPT?

Sydney (AEST, UTC+10:00) is 4 hours 15 minutes behind NPT (NPT, UTC+05:45). The gap is currently -4h 15m.

How do I convert Sydney time to NPT time?

Add -4h 15m to Sydney local time. For example, 9:00 AM in Sydney is 4:45 AM in NPT.

What time is it in NPT right now?

NPT uses NPT at UTC+05:45. Use the live converter at the top of this page — it updates in real time and already accounts for the -4h 15m offset from Sydney.

What is the best time to call NPT from Sydney?

Call between 1:15 PM and 5:00 PM AEST — that maps to 9:00 AM–12:45 PM NPT and keeps both parties inside the working day.

Which is behind, Sydney or NPT?

Sydney is 4 hours 15 minutes behind NPT. When it is 12:00 PM in Sydney it is 7:45 AM in NPT.

Do Sydney and NPT use different time zones?

Sydney (Australia) uses AEST at UTC+10:00, while NPT uses NPT at UTC+05:45. The IANA identifiers are Australia/Sydney and Asia/Kathmandu.

Does daylight saving time affect the Sydney–NPT difference?

Neither zone observes daylight saving time, so the -4h 15m offset between Sydney and NPT is fixed all year.

Which other cities share Sydney's time zone?

AEST also covers Sydney, Melbourne, Brisbane, Canberra, Hobart, Gold Coast.

Which countries use AEST, Sydney's zone?

AEST is used in Australia (NSW, VIC, QLD, TAS, ACT), Papua New Guinea.

Is there a day difference between Sydney and NPT?

Not normally. The -4h 15m gap only pushes the date over the previous day.

What is the time difference between Sydney and NPT?

NPT is -4h 15m from Sydney.

What timezone is Sydney in?

Sydney operates on Australian Eastern Standard Time (AEST/AEDT). As Australia's financial capital, Sydney opens global markets at the start of the business day.

What timezone is NPT in?

NPT operates on its local timezone.

What are the business hours in Sydney?

Standard business hours in Sydney are 9:00 AM - 5:00 PM AEST.

Which countries use AEST (Australian Eastern Standard Time)?

AEST is used in Australia (NSW, VIC, QLD, TAS, ACT), Papua New Guinea.

Does AEST observe daylight saving time?

Yes, AEST switches to AEDT during summer months.

What are some interesting facts about AEST?

Queensland does not observe daylight saving time, staying on AEST year-round. Sydney and Melbourne switch to AEDT (UTC+11:00) in summer.

Which cities are in the NPT timezone?

Major cities in the NPT timezone include Kathmandu, Pokhara, Lalitpur, Bharatpur, Biratnagar.

What is the UTC offset for NPT?

Nepal Time (NPT) is at UTC+05:45.

What should I know about the NPT timezone?

Nepal Time is UTC+05:45 — a 45-minute offset, not a whole or half hour. The 45-minute offset was adopted in 1986 to match Kathmandu's solar time.

When is it midnight in Sydney, what time is it in NPT?

When it is 12:00 AM (midnight) in Sydney (AEST), it is -4h 15m later in NPT (NPT).