What is the time difference between Singapore and Phoenix?

Phoenix is 15 hours behind Singapore. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.

When is the best time to call Phoenix from Singapore?

There is no time inside normal working hours in both cities, so someone has to take the call outside them. The nearest workable windows are listed above — pick one and alternate who gets the awkward slot.

Does Singapore observe daylight saving time?

No. Singapore stays on UTC+8 all year, so its clocks never move.

Does Phoenix observe daylight saving time?

No. Phoenix stays on UTC-7 all year, so its clocks never move.

If it is midday in Singapore, what time is it in Phoenix?

It is 21:00 in Phoenix, still on the previous day. That holds for the current offsets; it does not change through the year, because neither city moves its clocks.

Which time zones do Singapore and Phoenix use?

Singapore uses Asia/Singapore, currently UTC+8, and Phoenix uses America/Phoenix, currently UTC-7 (MST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Singapore time to Phoenix time

Phoenix is 15 hours behind Singapore right now, so midday in Singapore lands in the evening in Phoenix.

Convert a time

From

Date

Time

Converted time

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The converter needs JavaScript to run. Everything below — offsets, daylight saving dates and the hour-by-hour table — is part of the page and works without it.

Hour by hour

The whole day mapped across: read down the left for Singapore, across for Phoenix.

Singapore	Phoenix
00:00	09:00previous day
01:00	10:00previous day
02:00	11:00previous day
03:00	12:00previous day
04:00	13:00previous day
05:00	14:00previous day
06:00	15:00previous day
07:00	16:00previous day
08:00	17:00previous day
09:00	18:00previous day
10:00	19:00previous day
11:00	20:00previous day
12:00	21:00previous day
13:00	22:00previous day
14:00	23:00previous day
15:00	00:00
16:00	01:00
17:00	02:00
18:00	03:00
19:00	04:00
20:00	05:00
21:00	06:00
22:00	07:00
23:00	08:00

Daylight saving time

Both cities keep one offset all year. Whatever difference holds today still holds in six months.

Singapore

Does not observe daylight saving time

Standard: UTC+8

Phoenix

Does not observe daylight saving time

Standard: UTC-7

When you can actually talk

A standard working day in Singapore and one in Phoenix do not overlap at all. Any call between them is early for one side or late for the other.

Singapore 08:00–18:00Phoenix 17:00–03:00
Singapore 00:00–08:00Phoenix 09:00–17:00

Reference

The underlying data, in case you need to put it in a calendar invitation or a configuration file.

	Singapore	Phoenix
IANA zone	Asia/Singapore	America/Phoenix
Abbreviation	UTC+8	MST
Standard offset	UTC+8	UTC-7
Daylight offset	—	—
Clock changes this year	0	0
Country	Singapore	United States

Example, not the current time. Live times appear once the page loads.

Common questions

What is the time difference between Singapore and Phoenix?: Phoenix is 15 hours behind Singapore. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.
When is the best time to call Phoenix from Singapore?: There is no time inside normal working hours in both cities, so someone has to take the call outside them. The nearest workable windows are listed above — pick one and alternate who gets the awkward slot.
Does Singapore observe daylight saving time?: No. Singapore stays on UTC+8 all year, so its clocks never move.
Does Phoenix observe daylight saving time?: No. Phoenix stays on UTC-7 all year, so its clocks never move.
If it is midday in Singapore, what time is it in Phoenix?: It is 21:00 in Phoenix, still on the previous day. That holds for the current offsets; it does not change through the year, because neither city moves its clocks.
Which time zones do Singapore and Phoenix use?: Singapore uses Asia/Singapore, currently UTC+8, and Phoenix uses America/Phoenix, currently UTC-7 (MST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.