Singapore to Ottumwa time converter

Ottumwa is 13 hours behind Singapore. When it is 9:00 AM in Singapore, it is 8:00 PM (Tue, Oct 20) in Ottumwa.

Singapore SGT

Wednesday, October 21, 2026

Ottumwa CDT

Tuesday, October 20, 2026

Singapore
Wed, Oct 21
SGTUTC+8
Ottumwa
Iowa, United States
Tue, Oct 20
CDTUTC-5-13h
Finding your time zone…
Shared working hours (9:00–18:00)

Singapore to Ottumwa conversion table

Every hour of today in Singapore and the matching time in Ottumwa. Light rows are typical working hours (9:00–18:00).

SingaporeOttumwa
12:00 AM11:00 AM−1 day
1:00 AM12:00 PM−1 day
2:00 AM1:00 PM−1 day
3:00 AM2:00 PM−1 day
4:00 AM3:00 PM−1 day
5:00 AM4:00 PM−1 day
6:00 AM5:00 PM−1 day
7:00 AM6:00 PM−1 day
8:00 AM7:00 PM−1 day
9:00 AM8:00 PM−1 day
10:00 AM9:00 PM−1 day
11:00 AM10:00 PM−1 day
12:00 PM11:00 PM−1 day
1:00 PM12:00 AM
2:00 PM1:00 AM
3:00 PM2:00 AM
4:00 PM3:00 AM
5:00 PM4:00 AM
6:00 PM5:00 AM
7:00 PM6:00 AM
8:00 PM7:00 AM
9:00 PM8:00 AM
10:00 PM9:00 AM
11:00 PM10:00 AM

Best time to call or meet

Working hours don't overlap fully. The closest fit is 9:00 AM – 11:00 AM in Singapore (8:00 PM – 10:00 PM in Ottumwa): working hours on one side, early or late on the other.

Daylight saving time and the difference

The difference changes during the year because Singapore and Ottumwa switch clocks on different dates:

  • Oct 21, 2026 – Nov 1, 2026: -13h
  • Nov 1, 2026 – Mar 14, 2027: -14h
  • Mar 14, 2027 – Oct 21, 2027: -13h

More conversions

Ottumwa to SingaporeSingapore to New YorkSingapore to LondonSingapore to Los AngelesSingapore to ChicagoSingapore to TorontoSingapore to São PauloSingapore to ParisSingapore to BerlinSingapore to MoscowSingapore to DubaiSingapore to New DelhiSingapore to Bangkok
New York to OttumwaLondon to OttumwaLos Angeles to OttumwaChicago to OttumwaToronto to OttumwaSão Paulo to OttumwaParis to OttumwaBerlin to OttumwaMoscow to OttumwaDubai to OttumwaNew Delhi to OttumwaBangkok to Ottumwa

Questions and answers

What is the time difference between Singapore and Ottumwa?

Ottumwa is 13 hours behind Singapore.

What time is it in Ottumwa when it is 9 AM in Singapore?

When it is 9:00 AM in Singapore, it is 8:00 PM (Tue, Oct 20) in Ottumwa.

When is the best time to call Ottumwa from Singapore?

Working hours don't overlap fully. The closest fit is 9:00 AM – 11:00 AM in Singapore (8:00 PM – 10:00 PM in Ottumwa): working hours on one side, early or late on the other.

Does the time difference between Singapore and Ottumwa change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.