What is the time difference between Phoenix and Singapore?

Singapore is 15 hours ahead of Phoenix. 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 Singapore from Phoenix?

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 Phoenix observe daylight saving time?

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

Does Singapore observe daylight saving time?

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

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

It is 03:00 in Singapore, and already the following day. That holds for the current offsets; it does not change through the year, because neither city moves its clocks.

Which time zones do Phoenix and Singapore use?

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

Convert Phoenix time to Singapore time

Singapore is 15 hours ahead of Phoenix right now, so midday in Phoenix lands in the small hours in Singapore.

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 Phoenix, across for Singapore.

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

Daylight saving time

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

Phoenix

Does not observe daylight saving time

Standard: UTC-7

Singapore

Does not observe daylight saving time

Standard: UTC+8

When you can actually talk

There is no hour where both cities are inside a 09:00–18:00 working day. Someone has to move — the nearest workable windows are below.

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

Reference

The zone identifiers and offsets behind everything above.

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

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

Common questions

What is the time difference between Phoenix and Singapore?: Singapore is 15 hours ahead of Phoenix. 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 Singapore from Phoenix?: 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 Phoenix observe daylight saving time?: No. Phoenix stays on UTC-7 all year, so its clocks never move.
Does Singapore observe daylight saving time?: No. Singapore stays on UTC+8 all year, so its clocks never move.
If it is midday in Phoenix, what time is it in Singapore?: It is 03:00 in Singapore, and already the following day. That holds for the current offsets; it does not change through the year, because neither city moves its clocks.
Which time zones do Phoenix and Singapore use?: Phoenix uses America/Phoenix, currently UTC-7 (MST), and Singapore uses Asia/Singapore, currently UTC+8. Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.