GST to IDT Converter
Convert time between Gulf Standard Time (GST) and Israel Daylight Time (IDT)
Gulf Standard Time (GST)
Israel Daylight Time (IDT)
Time Difference
Israel Daylight Time (IDT) is 0 hours ahead of Gulf Standard Time (GST)
Select Date
Select Time
Quick Reference
| GST | IDT |
|---|---|
| 06:00 | 05:00 |
| 08:00 | 07:00 |
| 10:00 | 09:00 |
| 12:00 | 11:00 |
| 14:00 | 13:00 |
| 16:00 | 15:00 |
| 18:00 | 17:00 |
| 20:00 | 19:00 |
| 22:00 | 21:00 |
| 00:00 | 23:00 |
| 02:00 | 01:00 |
| 04:00 | 03:00 |
Top 10 Most Common Time Zones
| Abbreviation | Full Name | UTC Offset | Typical Use |
|---|---|---|---|
| UTC | Coordinated Universal Time | UTC ±0 | Global reference standard (servers, logs, APIs) |
| EST / EDT | Eastern (US) Time | UTC −5 / −4 | New York, Toronto — North American business hub |
| CST / CDT | Central (US) Time | UTC −6 / −5 | Chicago, Dallas — US central business region |
| PST / PDT | Pacific (US) Time | UTC −8 / −7 | San Francisco, Los Angeles — tech industry standard |
| GMT / BST | Greenwich Mean / British Summer Time | UTC 0 / +1 | UK, used globally as a reference with UTC |
| CET / CEST | Central European (Summer) Time | UTC +1 / +2 | Paris, Berlin, Amsterdam — EU business core |
| IST | India Standard Time | UTC +5:30 | India — major IT & outsourcing region |
| CST | China Standard Time | UTC +8 | Beijing, Shanghai — East Asia business hub |
| JST | Japan Standard Time | UTC +9 | Tokyo — finance & tech hub |
| AEST / AEDT | Australian Eastern (Daylight) Time | UTC +10 / +11 | Sydney, Melbourne — APAC regional business |
Why Time Zone Abbreviations Are Ambiguous
Unlike standardized identifiers (like America/New_York or Europe/London from the IANA tz database), abbreviations such as "CST" or "IST" are not globally unique. They can refer to different time zones depending on context — country, region, or even time of year (due to daylight saving time).
Common Ambiguous Time Zone Abbreviations
| Abbrev. | Common Meaning(s) | UTC Offset | Region(s) |
|---|---|---|---|
| CST | Central Standard Time / China Standard Time / Cuba Standard Time | UTC−6 / UTC+8 / UTC−5 | North America, China, Cuba |
| IST | Indian Standard Time / Irish Standard Time / Israel Standard Time | UTC+5:30 / UTC+1 / UTC+2 | India, Ireland, Israel |
| AST | Atlantic Standard Time / Arabia Standard Time | UTC−4 / UTC+3 | Caribbean, Canada, Middle East |
| PST | Pacific Standard Time / Philippine Standard Time | UTC−8 / UTC+8 | North America, Philippines |
| EST | Eastern Standard Time (North America / Australia) | UTC−5 / UTC+10 | North America, Australia |
✅ Best Practice
To avoid ambiguity, always:
- Use IANA tz identifiers — e.g.,
America/New_Yorkinstead of "EST" - Specify UTC offset explicitly — e.g.,
UTC−5when abbreviations must be used - Include the full timezone name — e.g., "Eastern Standard Time (EST)" with UTC offset
About GST to IDT Time Conversion
Converting time between Gulf Standard Time (GST) and Israel Daylight Time (IDT) helps coordinate work between Dubai, Abu Dhabi, Muscat, and Israeli cities like Tel Aviv and Jerusalem. GST is UTC+4 while IDT is UTC+3, placing GST 1 hour ahead of IDT.
This time zone converter uses the IANA timezone database to ensure accurate calculations. The Gulf states do not observe daylight saving, so GST is constant year-round. Israel uses IDT from late March to late October. Whether you are scheduling business meetings between Dubai and Tel Aviv or coordinating projects across the region, this converter delivers reliable results.
Common Use Cases for GST to IDT Conversion
Business & Work
- Scheduling meetings between Gulf-based teams and Israeli partners
- Coordinating project deadlines across the Gulf and Israel
- Planning conference calls between Dubai and Tel Aviv
Personal & Travel
- Planning travel itineraries between the Gulf and Israel
- Coordinating with family and friends in Israel from the Gulf region
- Scheduling virtual events for GST and IDT audiences
Time Zone Information
Gulf Standard Time (GST)
- UTC Offset: UTC+4
- IANA Timezone: Asia/Dubai
- Daylight Saving: None - GST is constant year-round
- Major Cities: Dubai, Abu Dhabi, Muscat, Sharjah, Al Ain
- Coverage: United Arab Emirates and Oman
Israel Daylight Time (IDT)
- UTC Offset: UTC+3 (UTC+2 during IST)
- IANA Timezone: Asia/Jerusalem
- Daylight Saving: Friday before last Sunday in March to last Sunday in October
- Major Cities: Tel Aviv, Jerusalem, Haifa, Eilat, Beersheba
- Coverage: All of Israel during daylight saving period (late March to late October)
Quick Reference: GST to IDT
Remember: GST is always 1 hour ahead of IDT during Israel's daylight saving period
Frequently Asked Questions
What is the time difference between GST and IDT?
Gulf Standard Time (GST) is UTC+4, while Israel Daylight Time (IDT) is UTC+3. GST is 1 hour ahead of IDT. When it is 12:00 PM in Dubai, it is 11:00 AM in Tel Aviv.
When does this GST to IDT conversion apply?
GST is constant year-round in the Gulf states. IDT applies in Israel from late March to late October — so the 1-hour offset applies during that window. Outside it, the offset becomes 2 hours (GST to IST).
How does the time difference change throughout the year?
GST never changes. The only shift comes from Israel: when Israel transitions to IST (UTC+2) in late October, the offset between GST and IST becomes 2 hours.
What are the best times for GST-IDT business calls?
A 10:00 AM call in Dubai is 9:00 AM in Tel Aviv — almost the same working hours. The full 9:00 AM to 5:00 PM business day overlaps neatly between GST and IDT, giving one of the easiest cross-region scheduling pairs.
Which countries/regions use IDT timezone?
IDT is observed throughout Israel, including Tel Aviv, Jerusalem, Haifa, Eilat, and Beersheba. It is the daylight saving variant of Israel Standard Time and is used nationwide.
Which countries/regions use GST timezone?
GST is observed in the United Arab Emirates and Oman. Major cities include Dubai, Abu Dhabi, Muscat, Sharjah, and Al Ain. Other Gulf states like Saudi Arabia, Kuwait, and Qatar use Arabia Standard Time (UTC+3).
Pro Tips
- • GST is 1 hour ahead of IDT — drop 1 hour from a Dubai time to get the Tel Aviv time.
- • GST never changes (no DST), so the offset shifts only when Israel transitions between IDT and IST.
- • Best meeting window: full working day overlap (9:00 AM–5:00 PM GST = 8:00 AM–4:00 PM IDT).
- • When Israel switches to IST in late October, the offset becomes 2 hours instead of 1.
- • Plan around Israel's Friday-Saturday weekend — Sunday is a working day in Israel.
- • The Gulf weekend is also Friday-Saturday, so weekend overlap is easy to align.