ADT SingaporeTime Converter
ADT (UTC−3) is currently 11 hours behind Singapore (SGT, UTC+8). Compare live clocks, convert any hour, and find times to meet.
Quick answer
When it's in ADT, it's the same day in Singapore.
ADT runs 11 hours behind Singapore (SGT). A 9-to-5 workday on one side lands in the other side's evening or night, so the two cities share almost no normal working hours — edge-of-day calls are the trick.
- Time difference
- +11h 00m
- ADT
- UTC−3
- Singapore
- UTC+8
- Best call window
- Outside 9–6
ADT to Singapore conversion table
The next 12 hours in ADT and the matching local time in Singapore. The current hour is highlighted; drag the converter's slider and the table follows.
| ADT | Singapore · SGT |
|---|---|
| NOW Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Best time to meet between ADT & Singapore
Working hours are 9am–6pm in each city. The bright band is where they overlap — when both sides are at their desks.
Daylight saving shifts this gap by up to 1 hour
The difference between ADT and Singapore swings between 11 and 12 hours across the year as each side starts or ends daylight saving. ADT is the daylight-saving counterpart of AST (UTC−4). Singapore does not observe daylight saving time. This page always shows the live, DST-aware difference.
Related time zone conversions
Jump straight to another pair — every combination is a live tool, not an article.
From ADT
To Singapore
One source of truth — for you and your AI
This page exposes the same answer as structured data, so when you ask an assistant "what's 9am ADT time in Singapore?", it can cite the exact, DST-aware result — not a stale blog post.
- Schema.org JSON-LD on every converter page
- A machine-readable facts island with IANA zones and every possible offset
- Live times in <time datetime> elements with explicit UTC offsets
{
"pair": "ADT → Singapore",
"url": "https://worldclock.pro/en/convert/adt-to-singapore",
"from": {
"name": "ADT",
"type": "timezone",
"abbreviation": "AST",
"daylightAbbreviation": "ADT",
"iana": "America/Halifax",
"standardUtcOffset": "-04:00",
"daylightUtcOffset": "-03:00",
"referenceCity": "Halifax"
},
"to": {
"name": "Singapore",
"type": "city",
"abbreviation": "SGT",
"daylightAbbreviation": null,
"iana": "Asia/Singapore",
"standardUtcOffset": "+08:00",
"daylightUtcOffset": null,
"referenceCity": "Singapore"
},
"currentDifferenceMinutes": 660,
"possibleDifferencesMinutes": [
660,
720
],
"note": "Between the regions that use these zones the difference is 11 and 12 hours across the year, depending on daylight saving on each side. The clocks on this page show the named zones themselves, which are fixed."
}
Frequently asked questions
What is the time difference between ADT and Singapore?
ADT is currently 11 hours behind Singapore. ADT is on ADT (UTC−3) and Singapore is on SGT (UTC+8). The difference can change when either side starts or ends daylight saving time.
Is Singapore ahead of or behind ADT?
Singapore is currently 11 hours ahead of ADT.
When it is 9:00 AM in ADT, what time is it in Singapore?
When it is 9:00 AM on a Monday in ADT, it is 8:00 PM in Singapore.
Do ADT and Singapore observe daylight saving time?
ADT is the daylight-saving counterpart of AST (UTC−4). Singapore does not observe daylight saving time.
How do I convert ADT time to Singapore time?
Add 11 hours to any time in ADT to get the time in Singapore. This page's converter and 24-hour table do it automatically and stay correct through daylight-saving changes.
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