IDT to GST Converter
Convert time between Israel Daylight Time (IDT) and Gulf Standard Time (GST)
Israel Daylight Time (IDT)
Gulf Standard Time (GST)
Time Difference
Gulf Standard Time (GST) is 0 hours ahead of Israel Daylight Time (IDT)
Select Date
Select Time
Quick Reference
| IDT | GST |
|---|---|
| 05:00 | 06:00 |
| 07:00 | 08:00 |
| 09:00 | 10:00 |
| 11:00 | 12:00 |
| 13:00 | 14:00 |
| 15:00 | 16:00 |
| 17:00 | 18:00 |
| 19:00 | 20:00 |
| 21:00 | 22:00 |
| 23:00 | 00:00 |
| 01:00 | 02:00 |
| 03:00 | 04:00 |
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 IDT to GST Time Conversion
Converting time between Israel Daylight Time (IDT) and Gulf Standard Time (GST) helps coordinate work between Tel Aviv, Jerusalem, and Gulf cities like Dubai, Abu Dhabi, and Muscat. IDT is UTC+3 while GST is UTC+4, 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 Tel Aviv and Dubai or coordinating projects across the region, this converter delivers reliable results.
Common Use Cases for IDT to GST Conversion
Business & Work
- Scheduling meetings between Israeli teams and Gulf-based partners
- Coordinating project deadlines across Israel and the Gulf
- Planning conference calls between Tel Aviv and Dubai
Personal & Travel
- Planning travel itineraries between Israel and the Gulf
- Coordinating with family and friends in the Gulf region from Israel
- Scheduling virtual events for IDT and GST audiences
Time Zone Information
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)
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
Quick Reference: IDT to GST
Remember: GST is always 1 hour ahead of IDT during Israel's daylight saving period
Frequently Asked Questions
What is the time difference between IDT and GST?
Israel Daylight Time (IDT) is UTC+3, while Gulf Standard Time (GST) is UTC+4. GST is 1 hour ahead of IDT. When it is 12:00 PM in Tel Aviv, it is 1:00 PM in Dubai.
When does this IDT to GST 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 (IST to GST).
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 IST and GST becomes 2 hours.
What are the best times for IDT-GST business calls?
A 9:00 AM call in Tel Aviv is 10:00 AM in Dubai — almost the same working hours. The full 9:00 AM to 5:00 PM business day overlaps neatly between IDT and GST.
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).
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.
Pro Tips
- • GST is 1 hour ahead of IDT — add 1 hour to a Tel Aviv time to get the Dubai 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 (8:00 AM–4:00 PM IDT = 9:00 AM–5:00 PM GST).
- • 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.