Illinois, USA
CST
12am
3am
6am
9am
12pm
3pm
6pm
9pm
H
Hotel Time Zone
GMT +8
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Time Difference

CST (Central Standard Time) is 14 hours behind Hotel Time Zone
6:00 am06:00 in Alton, IL, USA is 8:00 pm20:00 in H

Alton to H call time
Best time for a conference call or a meeting is between 5:30pm-6:30pm in Alton which corresponds to 7:30am-8:30am in H (next day)

6:00 am06:00 CST (Central Standard Time) (Alton, IL, USA). Offset UTC -6:00 hours
8:00 pm20:00 Hotel Time Zone (H). Offset UTC +8:00 hours

6:00 am06:00 Alton, IL, USA / 8:00 pm20:00 H

Alton, IL, USAH
12am (midnight)2pm
1am3pm
2am4pm
3am5pm
4am6pm
5am7pm
6am8pm
7am9pm
8am10pm
9am11pm
10am12am (midnight)
11am1am
12pm (noon)2am
1pm3am
2pm4am
3pm5am
4pm6am
5pm7am
6pm8am
7pm9am
8pm10am
9pm11am
10pm12pm (noon)
11pm1pm
00:0014:00
01:0015:00
02:0016:00
03:0017:00
04:0018:00
05:0019:00
06:0020:00
07:0021:00
08:0022:00
09:0023:00
10:0000:00
11:0001:00
12:0002:00
13:0003:00
14:0004:00
15:0005:00
16:0006:00
17:0007:00
18:0008:00
19:0009:00
20:0010:00
21:0011:00
22:0012:00
23:0013:00

Alton Information

Time Zone

Abbreviation / Name
CDT - Central Daylight Time
CST - Central Standard Time
UTC / GMT Offset
-5:00 hours during Central Daylight Time, currently in use.
-6:00 hours during Central 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 2am to 3amSunday, March 8, 2026 at 2:00 am local time. DST starts annually on the 2nd Sunday of March. Clocks are turned forward 1 hour to Sunday, March 8, 2026 at 3:00 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, November 1, 2026 at 2:00 am local time. DST ends annually on the 1st Sunday of November. Clocks are turned backward 1 hour to Sunday, November 1, 2026 at 1:00 am local standard time instead. Also called Fall Back or switch to Winter Time.

Alton Facts

Country
USA
State
Illinois
Alternative Names
ALN, Alton (Illinois), Olton, altana, altwn, altwn aylynwy, eltana, Олтон, آلتون، ایلینوی, آلٹن، الینوائے, ألتون, आल्टन, एल्टन
Population
27,003
Currency
Dollar (USD)
Geographic Coordinates
38° 53' N Latitude / 90° 11' W Longitude
International Dialing Code
+1

Hotel Time Zone

Offset: H is 8 hours ahead Greenwich Mean Time (GMT) and is used in Military

Daylight Saving: Hotel Time Zone (H) is not adjusted for daylight saving therefore H remains the same through out the year. This means, unlike some time zones where the clock is set forward by one hour every summer and backward by one hour during winter to adjust for daylight saving, Hotel Time Zone remains the same

H representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +08 - basic short
  • +0800 - basic
  • +08:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0800 - sign character (+) followed by a four digit time providing hours (08) and minutes (00) of the offset. Indicates eight hour and zero minutes time differences to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Hotel - Military abbreviation for H
  • H - short form of 'Hotel'
Time zones with the GMT +8 offset:
  • ACT - ASEAN Common Time
  • AWST - Australian Western Standard Time
  • BNT - Brunei Darussalam Time
  • CAST - Casey Time
  • CHOT - Choibalsan Time
  • CST - China Standard Time
  • H - Hotel Time Zone
  • HKT - Hong Kong Time
  • HOVST - Hovd Summer Time
  • IRKT - Irkutsk Time
  • KRAST - Krasnoyarsk Summer Time
  • MYT - Malaysia Time
  • PHT - Philippine Time
  • SGT - Singapore Time
  • ULAT - Ulaanbaatar Time
  • WITA - Central Indonesian Time