SGT to IDT Converter
Convert time between Singapore Standard Time (SGT) and Israel Daylight Time (IDT)
Singapore Standard Time (SGT)
Israel Daylight Time (IDT)
Time Difference
Israel Daylight Time (IDT) is 0 hours ahead of Singapore Standard Time (SGT)
Select Date
Select Time
Quick Reference
| SGT | IDT |
|---|---|
| 10:00 | 05:00 |
| 12:00 | 07:00 |
| 14:00 | 09:00 |
| 16:00 | 11:00 |
| 18:00 | 13:00 |
| 20:00 | 15:00 |
| 22:00 | 17:00 |
| 00:00 | 19:00 |
| 02:00 | 21:00 |
| 04:00 | 23:00 |
| 06:00 | 01:00 |
| 08:00 | 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 SGT to IDT Time Conversion
Converting time between Singapore Standard Time (SGT) and Israel Daylight Time (IDT) is essential for coordinating with Israel during the summer half-year. SGT is UTC+8 year-round, while IDT is UTC+3, 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 SGT-Israel offset comes entirely from the Israeli side. Whether you're scheduling Singapore-Tel Aviv business calls during the Israeli summer, planning travel, or coordinating with Israeli partners, our converter provides reliable results.
Common Use Cases for SGT to IDT Conversion
Business & Work
- Scheduling summer meetings between Singapore and Israeli tech offices
- Coordinating with Tel Aviv financial and venture-capital partners during IDT
- Planning conference calls with Israeli teams while daylight saving is active
Personal & Travel
- Planning travel between Singapore and Israel in the summer
- Coordinating with family and friends in Tel Aviv, Jerusalem or Haifa
- Scheduling virtual events during the Israeli summer evening window
Time Zone Information
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
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
Quick Reference: SGT to IDT
Remember: IDT is 5 hours behind SGT. 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 SGT and IDT?
Singapore Standard Time (SGT) is UTC+8, while Israel Daylight Time (IDT) is UTC+3. SGT is 5 hours ahead of IDT. When it is 12:00 PM in Singapore, it is 7:00 AM the same day in Tel Aviv or Jerusalem.
When is IDT in effect?
IDT applies from the Friday before the last Sunday in March to the last Sunday before Rosh Hashanah (typically late September or October). Outside that window Israel observes IST (UTC+2) and the SGT gap grows to 6 hours.
Does Singapore observe daylight saving time?
No. Singapore stays on SGT (UTC+8) year-round. Any seasonal shift in the SGT-IDT offset is driven by Israel switching between IST and IDT.
What are the best times for SGT-IDT business calls?
Singapore afternoon (2:00 to 5:00 PM SGT) maps to Israeli morning (9:00 AM to 12:00 PM IDT) — a clean overlap with Israeli business hours. For a late Israeli afternoon slot, 7:00 to 9:00 PM SGT reaches 2:00 to 4:00 PM IDT.
Which countries or regions use IDT?
IDT is observed across the State of Israel and the Palestinian territories during the Israeli summer. Major cities include Jerusalem, Tel Aviv, Haifa, Rishon LeZion, Petah Tikva, Ashdod and Netanya.
Which countries or regions use SGT?
Singapore Standard Time is used only in the Republic of Singapore. UTC+8 is shared with Malaysia, Western Australia, Hong Kong, the Philippines and most of mainland China.
Pro Tips
- • IDT is 5 hours behind SGT — subtract 5 hours from Singapore time to get Tel Aviv or Jerusalem time during the Israeli summer.
- • Outside IDT (autumn through spring), Israel is on IST and the offset becomes 6 hours. Refresh recurring invites near the DST transitions.
- • Note that the Israeli working week traditionally runs Sunday to Thursday — Friday afternoons and Saturdays (Shabbat) are weekends.
- • Singapore afternoon (2:00 to 5:00 PM SGT) is the cleanest overlap with Israeli morning business hours.
- • For Israeli end-of-day calls, 7:00 to 9:00 PM SGT works well — mid-afternoon for your counterparts.
- • Use IANA identifier Asia/Jerusalem in calendars to handle the IST/IDT switch automatically.