Portugal
WET
12am
3am
6am
9am
12pm
3pm
6pm
9pm
S
Sierra Time Zone
GMT -6
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Compare Cascais time with S time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

WET (Western European Time) is 6 hours ahead of Sierra Time Zone
12:00 pm12:00 in Cascais, Portugal is 6:00 am06:00 in S

Cascais to S call time
Best time for a conference call or a meeting is between 3pm-5pm in Cascais which corresponds to 9am-11am in S

12:00 pm12:00 WET (Western European Time) (Cascais, Portugal). Offset UTC 0:00 hours
6:00 am06:00 Sierra Time Zone (S). Offset UTC -6:00 hours

12:00 pm12:00 Cascais, Portugal / 6:00 am06:00 S

Cascais, PortugalS
12am (midnight)6pm
1am7pm
2am8pm
3am9pm
4am10pm
5am11pm
6am12am (midnight)
7am1am
8am2am
9am3am
10am4am
11am5am
12pm (noon)6am
1pm7am
2pm8am
3pm9am
4pm10am
5pm11am
6pm12pm (noon)
7pm1pm
8pm2pm
9pm3pm
10pm4pm
11pm5pm
00:0018:00
01:0019:00
02:0020:00
03:0021:00
04:0022:00
05:0023:00
06:0000:00
07:0001:00
08:0002:00
09:0003:00
10:0004:00
11:0005:00
12:0006:00
13:0007:00
14:0008:00
15:0009:00
16:0010:00
17:0011:00
18:0012:00
19:0013:00
20:0014:00
21:0015:00
22:0016:00
23:0017:00

Cascais Information

Time Zone

Abbreviation / Name
WEST - Western European Summer Time
WET - Western European Standard Time
UTC / GMT Offset
+1:00 hours during Western European Summer Time, currently in use.
+0:00 hours during Western European Standard Time.
Daylight Saving Time Change
+1:00 hour - DST is in use
Daylight Saving Time Starts
Daylight saving time clock moves forward for one hour from 1am to 2amSunday, March 29, 2026 at 1:00 am local time. DST starts annually on the last Sunday of March. Clocks are turned forward 1 hour to Sunday, March 29, 2026 at 2:00 am local daylight time instead. Also called Spring Forward or Summer Time.
Daylight Saving Time Ends
Daylight saving time clock moves back for one hour from 2am to 1amSunday, October 25, 2026 at 2:00 am local time. DST ends annually on the last Sunday of October. Clocks are turned backward 1 hour to Sunday, October 25, 2026 at 1:00 am local standard time instead. Also called Fall Back or switch to Winter Time.

Cascais Facts

Country
Portugal
Alternative Names
CAT, Cascaes, Cascais, Kashkajsh, Kaskais, Kaskaisas, Kaškaišas, ka si kai shen, kasukaisu, Κασκάις, Каскаис, Кашкайш, カスカイス, 卡斯凯什
Population
36,436
Currency
Euro (EUR)
Geographic Coordinates
38° 41' N Latitude / 9° 25' W Longitude
International Dialing Code
+351

Sierra Time Zone

Offset: S is 6 hours behind Greenwich Mean Time (GMT) and is used in Military

Daylight Saving: Clocks in Sierra Time Zone (S) do not change for daylight saving time, so S stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.

S representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -06 - basic short
  • -0600 - basic
  • -06:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0600 - sign character (-) followed by a four digit time providing hours (06) and minutes (00) of the offset. Indicates an offset of six hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Sierra - Military abbreviation for S
  • S - short form of 'Sierra'
Time zones with the GMT -6 offset:
  • CST - Central Standard Time
  • CT - Central Time
  • MDT - Mountain Daylight Time
  • EAST - Easter Island Standard Time
  • GALT - Galapagos Time
  • S - Sierra Time Zone