IDT to SGT Converter
Convert time between Israel Daylight Time (IDT) and Singapore Standard Time (SGT)
Israel Daylight Time (IDT)
Singapore Standard Time (SGT)
Time Difference
Singapore Standard Time (SGT) is 0 hours ahead of Israel Daylight Time (IDT)
Select Date
Select Time
Quick Reference
| IDT | SGT |
|---|---|
| 05:00 | 10:00 |
| 07:00 | 12:00 |
| 09:00 | 14:00 |
| 11:00 | 16:00 |
| 13:00 | 18:00 |
| 15:00 | 20:00 |
| 17:00 | 22:00 |
| 19:00 | 00:00 |
| 21:00 | 02:00 |
| 23:00 | 04:00 |
| 01:00 | 06:00 |
| 03:00 | 08:00 |
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 SGT Time Conversion
Converting time between Israel Daylight Time (IDT) and Singapore Standard Time (SGT) is essential for coordinating with Israel during the summer half-year. IDT is UTC+3, while SGT is UTC+8 year-round, putting Singapore 5 hours ahead of Israel from late March to late October. Outside IDT, Israel observes IST (UTC+2) and the gap grows to 6 hours.
This time zone converter uses the IANA timezone database to ensure accurate calculations. IDT applies from the Friday before the last Sunday in March to the last Sunday before Rosh Hashanah in October. Singapore never observes daylight saving, so the seasonal variation in the Israel-Singapore offset comes entirely from the Israeli side. Whether you're scheduling Tel Aviv-Singapore business calls during the Israeli summer, planning travel, or coordinating with Singaporean partners from Israel, our converter provides reliable results.
Common Use Cases for IDT to SGT Conversion
Business & Work
- Scheduling summer meetings between Israeli tech offices and Singapore
- Coordinating with Singapore partners from Tel Aviv financial and venture-capital firms during IDT
- Planning conference calls with Singapore teams while daylight saving is active in Israel
Personal & Travel
- Planning travel between Israel and Singapore in the summer
- Coordinating with family and friends in Singapore
- Scheduling virtual events during the Israeli summer afternoon window
Time Zone Information
Israel Daylight Time (IDT)
- UTC Offset: UTC+3
- IANA Timezone: Asia/Jerusalem
- Daylight Saving: Active from the Friday before the last Sunday in March to the last Sunday before Rosh Hashanah (reverts to IST UTC+2)
- Major Cities: Jerusalem, Tel Aviv, Haifa, Rishon LeZion, Petah Tikva, Ashdod, Netanya
- Coverage: State of Israel and the Palestinian territories
Singapore Standard Time (SGT)
- UTC Offset: UTC+8
- IANA Timezone: Asia/Singapore
- Daylight Saving: No daylight saving time (consistent year-round)
- Major Cities: Singapore
- Coverage: Republic of Singapore
Quick Reference: IDT to SGT
Remember: SGT is 5 hours ahead of IDT. Outside Israeli daylight saving (late autumn to spring), Israel is on IST and the gap grows to 6 hours.
Frequently Asked Questions
What is the time difference between IDT and SGT?
Israel Daylight Time (IDT) is UTC+3, while Singapore Standard Time (SGT) is UTC+8. SGT is 5 hours ahead of IDT. When it is 12:00 PM in Tel Aviv or Jerusalem, it is 5:00 PM the same day in Singapore.
When does IDT apply?
IDT is the daylight saving time of Israel, in effect from the Friday before the last Sunday in March to the last Sunday before Rosh Hashanah (typically late October). Outside that window Israel is on IST (UTC+2) and Singapore is 6 hours ahead.
How does the time difference change throughout the year?
When Israel switches back from IDT to IST in autumn, the Singapore offset grows from 5 hours to 6 hours. Singapore never observes daylight saving, so the change is entirely on the Israeli side.
What are the best times for IDT-SGT business calls?
Israeli morning (9:00 to 11:00 AM IDT) maps to Singapore afternoon (2:00 to 4:00 PM SGT) — comfortable on both sides. For Singapore morning starts, 3:00 to 5:00 AM IDT works only for early Israeli risers.
Which countries or regions use SGT?
Singapore Standard Time is used only in the Republic of Singapore. Neighboring Malaysia uses the same UTC+8 offset under the name MYT, and Western Australia uses AWST also at UTC+8.
Which countries or regions use IDT?
IDT applies in the State of Israel and the Palestinian territories during the summer half-year. Major cities include Jerusalem, Tel Aviv, Haifa, Rishon LeZion, Petah Tikva, Ashdod and Netanya. The Israeli working week runs Sunday to Thursday, with Friday and Saturday as the weekend.
Pro Tips
- • SGT is 5 hours ahead of IDT — add 5 hours to Israeli summer time to get Singapore time.
- • Singapore never observes DST, so when IDT ends in autumn the offset grows to 6 hours entirely on the Israeli side.
- • Israeli mornings line up with Singapore afternoons — the cleanest cross-region overlap during the Israeli summer.
- • The Israeli working week is Sunday to Thursday; Friday is a half-day. Singapore follows the standard Monday-Friday week.
- • Israeli DST ends with the Sunday before Rosh Hashanah — confirm the exact date each year since it shifts with the Jewish calendar.
- • Use IANA identifiers Asia/Jerusalem and Asia/Singapore in calendars to handle the IST/IDT transition automatically.