61 Indexable Corridors (87 Curated) · Winter & Summer Baselines

Timezone Converter Directory & Global Meeting Corridors

Select any corridor below to view its standard winter and summer time difference, computed 9:00 AM – 5:00 PM working overlap, waking shoulder windows (7:00 AM – 9:00 PM local), upcoming Daylight Saving Time transitions, and weekday/weekend mapping.

North America ↔ UK & Europe Corridors

Transatlantic routes with 5-to-9-hour standard offsets and March/October DST desync windows.

Toronto → London🇨🇦 → 🇬🇧
EST → GMT (5 hours)
London → Toronto🇬🇧 → 🇨🇦
GMT → EST (5 hours)
New York → London🇺🇸 → 🇬🇧
EST → GMT (5 hours)
London → New York🇬🇧 → 🇺🇸
GMT → EST (5 hours)
New York → Paris🇺🇸 → 🇫🇷
EST → CET (6 hours)
Paris → New York🇫🇷 → 🇺🇸
CET → EST (6 hours)
New York → Berlin🇺🇸 → 🇩🇪
EST → CET (6 hours)
Berlin → New York🇩🇪 → 🇺🇸
CET → EST (6 hours)
New York → Amsterdam🇺🇸 → 🇳🇱
EST → CET (6 hours)
Amsterdam → New York🇳🇱 → 🇺🇸
CET → EST (6 hours)
New York → Dublin🇺🇸 → 🇮🇪
EST → GMT (5 hours)
Dublin → New York🇮🇪 → 🇺🇸
GMT → EST (5 hours)
New York → Zurich🇺🇸 → 🇨🇭
EST → CET (6 hours)
Zurich → New York🇨🇭 → 🇺🇸
CET → EST (6 hours)
San Francisco → London🇺🇸 → 🇬🇧
PST → GMT (8 hours)
London → San Francisco🇬🇧 → 🇺🇸
GMT → PST (8 hours)
Chicago → London🇺🇸 → 🇬🇧
CST → GMT (6 hours)
London → Chicago🇬🇧 → 🇺🇸
GMT → CST (6 hours)

North America & UK ↔ India & South Asia (Fractional :30 Offsets)

Routes involving India Standard Time (IST, UTC+5:30).

New York → Mumbai🇺🇸 → 🇮🇳
EST → IST (10 hours and 30 minutes)DST: 9 hours and 30 minutes
Mumbai → New York🇮🇳 → 🇺🇸
IST → EST (10 hours and 30 minutes)DST: 9 hours and 30 minutes
New York → New Delhi🇺🇸 → 🇮🇳
EST → IST (10 hours and 30 minutes)DST: 9 hours and 30 minutes
New Delhi → New York🇮🇳 → 🇺🇸
IST → EST (10 hours and 30 minutes)DST: 9 hours and 30 minutes
San Francisco → Bengaluru🇺🇸 → 🇮🇳
PST → IST (13 hours and 30 minutes)DST: 12 hours and 30 minutes
Bengaluru → San Francisco🇮🇳 → 🇺🇸
IST → PST (13 hours and 30 minutes)DST: 12 hours and 30 minutes
Toronto → Mumbai🇨🇦 → 🇮🇳
EST → IST (10 hours and 30 minutes)DST: 9 hours and 30 minutes
Mumbai → Toronto🇮🇳 → 🇨🇦
IST → EST (10 hours and 30 minutes)DST: 9 hours and 30 minutes
Chicago → Mumbai🇺🇸 → 🇮🇳
CST → IST (11 hours and 30 minutes)DST: 10 hours and 30 minutes
Mumbai → Chicago🇮🇳 → 🇺🇸
IST → CST (11 hours and 30 minutes)DST: 10 hours and 30 minutes
London → Mumbai🇬🇧 → 🇮🇳
GMT → IST (5 hours and 30 minutes)DST: 4 hours and 30 minutes
Mumbai → London🇮🇳 → 🇬🇧
IST → GMT (5 hours and 30 minutes)DST: 4 hours and 30 minutes
London → New Delhi🇬🇧 → 🇮🇳
GMT → IST (5 hours and 30 minutes)DST: 4 hours and 30 minutes
New Delhi → London🇮🇳 → 🇬🇧
IST → GMT (5 hours and 30 minutes)DST: 4 hours and 30 minutes

North America & Europe ↔ East & Southeast Asia

Transpacific and Eurasian corridors across Tokyo (JST), Singapore (SGT), Manila (PHT), Hong Kong (HKT), and Seoul (KST).

San Francisco → Tokyo🇺🇸 → 🇯🇵
PST → JST (17 hours)DST: 16 hours
Tokyo → San Francisco🇯🇵 → 🇺🇸
JST → PST (17 hours)DST: 16 hours
New York → Tokyo🇺🇸 → 🇯🇵
EST → JST (14 hours)DST: 13 hours
Tokyo → New York🇯🇵 → 🇺🇸
JST → EST (14 hours)DST: 13 hours
London → Tokyo🇬🇧 → 🇯🇵
GMT → JST (9 hours)DST: 8 hours
Tokyo → London🇯🇵 → 🇬🇧
JST → GMT (9 hours)DST: 8 hours
New York → Singapore🇺🇸 → 🇸🇬
EST → SGT (13 hours)DST: 12 hours
Singapore → New York🇸🇬 → 🇺🇸
SGT → EST (13 hours)DST: 12 hours
San Francisco → Singapore🇺🇸 → 🇸🇬
PST → SGT (16 hours)DST: 15 hours
Singapore → San Francisco🇸🇬 → 🇺🇸
SGT → PST (16 hours)DST: 15 hours
London → Singapore🇬🇧 → 🇸🇬
GMT → SGT (8 hours)DST: 7 hours
Singapore → London🇸🇬 → 🇬🇧
SGT → GMT (8 hours)DST: 7 hours
New York → Manila🇺🇸 → 🇵🇭
EST → PHT (13 hours)DST: 12 hours
Manila → New York🇵🇭 → 🇺🇸
PHT → EST (13 hours)DST: 12 hours
San Francisco → Seoul🇺🇸 → 🇰🇷
PST → KST (17 hours)DST: 16 hours
Seoul → San Francisco🇰🇷 → 🇺🇸
KST → PST (17 hours)DST: 16 hours
London → Hong Kong🇬🇧 → 🇭🇰
GMT → HKT (8 hours)DST: 7 hours
Hong Kong → London🇭🇰 → 🇬🇧
HKT → GMT (8 hours)DST: 7 hours

UK, Europe & North America ↔ Middle East (Gulf & Levant)

Corridors featuring UAE Friday midday schedules (GST, UTC+4) and Sunday–Thursday workweeks in Saudi Arabia (AST, UTC+3) and Israel.

London → Dubai🇬🇧 → 🇦🇪
GMT → GST (4 hours)DST: 3 hours
Dubai → London🇦🇪 → 🇬🇧
GST → GMT (4 hours)DST: 3 hours
London → Riyadh🇬🇧 → 🇸🇦
GMT → AST (3 hours)DST: 2 hours
Riyadh → London🇸🇦 → 🇬🇧
AST → GMT (3 hours)DST: 2 hours
New York → Dubai🇺🇸 → 🇦🇪
EST → GST (9 hours)DST: 8 hours
Dubai → New York🇦🇪 → 🇺🇸
GST → EST (9 hours)DST: 8 hours
New York → Tel Aviv🇺🇸 → 🇮🇱
EST → IST (7 hours)
Tel Aviv → New York🇮🇱 → 🇺🇸
IST → EST (7 hours)
Dubai → Singapore🇦🇪 → 🇸🇬
GST → SGT (4 hours)
Singapore → Dubai🇸🇬 → 🇦🇪
SGT → GST (4 hours)
Dubai → Mumbai🇦🇪 → 🇮🇳
GST → IST (1 hour and 30 minutes)
Mumbai → Dubai🇮🇳 → 🇦🇪
IST → GST (1 hour and 30 minutes)

Oceania & Cross-Continent Corridors

Cross-hemisphere links with Sydney (AEST/AEDT), Auckland (NZST/NZDT), and North American hubs.

Sydney → London🇦🇺 → 🇬🇧
AEDT → GMT (11 hours)DST: 9 hours
London → Sydney🇬🇧 → 🇦🇺
GMT → AEDT (11 hours)DST: 9 hours
New York → Sydney🇺🇸 → 🇦🇺
EST → AEDT (16 hours)DST: 14 hours
Sydney → New York🇦🇺 → 🇺🇸
AEDT → EST (16 hours)DST: 14 hours
San Francisco → Sydney🇺🇸 → 🇦🇺
PST → AEDT (19 hours)DST: 17 hours
Sydney → San Francisco🇦🇺 → 🇺🇸
AEDT → PST (19 hours)DST: 17 hours
Sydney → Singapore🇦🇺 → 🇸🇬
AEDT → SGT (3 hours)DST: 2 hours
Singapore → Sydney🇸🇬 → 🇦🇺
SGT → AEDT (3 hours)DST: 2 hours
Sydney → Tokyo🇦🇺 → 🇯🇵
AEDT → JST (2 hours)DST: 1 hour
Tokyo → Sydney🇯🇵 → 🇦🇺
JST → AEDT (2 hours)DST: 1 hour
Sydney → Auckland🇦🇺 → 🇳🇿
AEDT → NZDT (2 hours)
Auckland → Sydney🇳🇿 → 🇦🇺
NZDT → AEDT (2 hours)
New York → San Francisco🇺🇸 → 🇺🇸
EST → PST (3 hours)
San Francisco → New York🇺🇸 → 🇺🇸
PST → EST (3 hours)

Timezone Abbreviation Converters (EST, PST, GMT, CET, IST)

Literal standard offset vs. Daylight Saving Time (EDT, PDT, BST, CEST) converters with global abbreviation disambiguation.

EST → IST🇺🇸 → 🇮🇳
EST → IST (10 hours and 30 minutes)DST: 9 hours and 30 minutes
IST → EST🇮🇳 → 🇺🇸
IST → EST (10 hours and 30 minutes)DST: 9 hours and 30 minutes
PST → IST🇺🇸 → 🇮🇳
PST → IST (13 hours and 30 minutes)DST: 12 hours and 30 minutes
IST → PST🇮🇳 → 🇺🇸
IST → PST (13 hours and 30 minutes)DST: 12 hours and 30 minutes
GMT → IST🇬🇧 → 🇮🇳
GMT → IST (5 hours and 30 minutes)DST: 4 hours and 30 minutes
EST → GMT🇺🇸 → 🇬🇧
EST → GMT (5 hours)
GMT → EST🇬🇧 → 🇺🇸
GMT → EST (5 hours)
EST → PST🇺🇸 → 🇺🇸
EST → PST (3 hours)
PST → EST🇺🇸 → 🇺🇸
PST → EST (3 hours)
EST → CET🇺🇸 → 🇩🇪
EST → CET (6 hours)
PST → GMT🇺🇸 → 🇬🇧
PST → GMT (8 hours)

Major Timezone Abbreviations Reference

AbbreviationFull NameStandard OffsetDaylight VariantRepresentative Hubs
ESTEastern Standard TimeUTC-5EDT (UTC-4)New York, Toronto, Miami, Atlanta, Boston
EDTEastern Daylight TimeUTC-5EDT (UTC-4)New York, Toronto, Miami, Atlanta, Boston
PSTPacific Standard TimeUTC-8PDT (UTC-7)San Francisco, Los Angeles, Seattle, Vancouver, San Diego
PDTPacific Daylight TimeUTC-8PDT (UTC-7)San Francisco, Los Angeles, Seattle, Vancouver, San Diego
CSTCentral Standard TimeUTC-6CDT (UTC-5)Chicago, Dallas, Houston, Austin, Minneapolis
MSTMountain Standard TimeUTC-7MDT (UTC-6)Denver, Salt Lake City, Calgary, Phoenix
GMTGreenwich Mean TimeUTC+0BST (UTC+1)London, Manchester, Edinburgh, Dublin, Lisbon
BSTBritish Summer TimeUTC+0BST (UTC+1)London, Manchester, Birmingham, Edinburgh, Belfast
CETCentral European TimeUTC+1CEST (UTC+2)Berlin, Paris, Amsterdam, Madrid, Rome
ISTIndia Standard TimeUTC+5:30None (No DST)Mumbai, Bengaluru, New Delhi, Hyderabad, Chennai
PHTPhilippine TimeUTC+8None (No DST)Manila, Cebu, Davao, Quezon City
SGTSingapore Standard TimeUTC+8None (No DST)Singapore
JSTJapan Standard TimeUTC+9None (No DST)Tokyo, Osaka, Yokohama, Nagoya, Fukuoka
AESTAustralian Eastern Standard TimeUTC+10AEDT (UTC+11)Sydney, Melbourne, Brisbane, Canberra
GSTGulf Standard TimeUTC+4None (No DST)Dubai, Abu Dhabi, Muscat
ASTArabia Standard TimeUTC+3None (No DST)Riyadh, Jeddah, Doha, Kuwait City, Baghdad
PKTPakistan Standard TimeUTC+5None (No DST)Karachi, Lahore, Islamabad, Rawalpindi