What Time Zone Is Alcalá de Guadaira In?
Alcalá de Guadaira operates on Europe/Madrid, abbreviated as GMT+1, which is currently UTC+01:00 from Coordinated Universal Time. The IANA Time Zone Database (also known as the tz database or zoneinfo) records this under the identifier Europe/Madrid. That identifier is what your phone, laptop, and every major web service uses when they display a localized time for Alcalá de Guadaira.
The designation Europe/Madrid follows the IANA convention of naming zones after the largest city in that timezone region. This naming is geographic, not political, it reflects where the zone is observed, not which government controls it. The full record for this zone, including historical UTC offsets and past DST rule changes, is publicly available in the Wikipedia list of tz database time zones.
UTC Offset: Alcalá de Guadaira vs. The World
The current UTC offset in Alcalá de Guadaira is UTC+01:00. This means Alcalá de Guadaira time is 01:00 hours ahead of Coordinated Universal Time. To quickly convert: if it's 12:00 UTC right now, it's 11:48 local time in Alcalá de Guadaira.
Relative to other major cities: Alcalá de Guadaira is 6 hours ahead of New York, and 1 hours ahead of London (including any DST difference currently in effect). These differences can shift by one hour during DST transitions, which occur on different dates in different regions.
Business Hours in Alcalá de Guadaira
Standard business hours in Alcalá de Guadaira run from 09:00 to 18:00 local time (Europe/Madrid). In UTC, that window is 08:48 to 17:48 UTC. If you're trying to schedule a call with someone in Alcalá de Guadaira:
- From New York: the Alcalá de Guadaira business day runs 03:48 to 12:48 New York time.
- From London: the Alcalá de Guadaira business day runs 08:48 to 17:48 London time.
Use the hour-by-hour conversion table above for the full 24-hour breakdown.
Daylight Saving Time in Alcalá de Guadaira
The DST indicator above shows whether Alcalá de Guadaira currently observes Daylight Saving Time. When DST is active, clocks advance by one hour, shifting the UTC offset by +1 and changing the abbreviation (for example, from EST to EDT in New York). When DST ends, clocks fall back and the offset returns to its standard value.
Not all countries observe DST. Japan, China, India, most of Africa, and several other nations maintain a fixed offset year-round. Whether Europe/Madrid observes DST, and the exact dates of transitions, is governed by the rules stored in the IANA Time Zone Database , the same source your phone uses. The Wikipedia article on Daylight Saving Time provides a global map and country-by-country breakdown of DST observance.
Sunrise and Sunset in Alcalá de Guadaira
Today in Alcalá de Guadaira (37.3°N, 5.8°W), sunrise is approximately 06:53 and sunset is approximately 18:17 local time (Europe/Madrid). These times are calculated using the Spencer equation for solar declination and apply to today's date. Latitude significantly affects day length: cities near the equator see roughly 12 hours of daylight year-round, while high-latitude cities experience dramatic swings, midsummer days can exceed 20 hours near the Arctic Circle, while midwinter days shrink to under 4 hours. At 37.3° latitude, Alcalá de Guadaira's day length varies by several hours between summer and winter solstice.
Best Time to Call Alcalá de Guadaira from Abroad
Standard business hours in Alcalá de Guadaira run 09:00 to 18:00 local time (Europe/Madrid). For international callers, the ideal window is 10:00 to 16:00 Alcalá de Guadaira time : after the morning rush and before the end-of-day slowdown. In UTC, this translates to 09:48 to 15:48 UTC. Avoid calling before 09:00 or after 20:00 Alcalá de Guadaira time, these windows fall outside acceptable business etiquette in most professional settings. If you are calling from New York,Alcalá de Guadaira business hours correspond to 03:48 to 12:48 Eastern time. From London, that same window is 08:48 to 17:48 GMT/BST.
Alcalá de Guadaira Time vs Major World Cities
Right now, Alcalá de Guadaira (UTC+01:00) is offset from major business hubs as follows:
- New York: Alcalá de Guadaira is 6 hours ahead of New York right now (UTC-05:00).
- London: Alcalá de Guadaira is 1 hour ahead of London right now (UTC+00:00).
- Dubai: Alcalá de Guadaira is 3 hours behind Dubai right now (UTC+04:00).
- Singapore: Alcalá de Guadaira is 7 hours behind Singapore right now (UTC+08:00).
- Tokyo: Alcalá de Guadaira is 8 hours behind Tokyo right now (UTC+09:00).
- Sydney: Alcalá de Guadaira is 10 hours behind Sydney right now (UTC+11:00).
These differences shift by one hour during DST transitions, which occur on different dates in different regions. Always verify the current offset before scheduling.
Geographic Location of Alcalá de Guadaira
Alcalá de Guadaira sits at 37.3379°N, -5.8395°W. Solar noon, the moment the sun reaches its highest point, occurs at approximately 12:48 local time, when the sun crosses the meridian above Alcalá de Guadaira. The IANA timezone Europe/Madrid groups Alcalá de Guadaira with nearby cities that share the same legal time, even if they sit at slightly different longitudes and therefore experience solar noon at slightly different moments. Zone boundaries are drawn along political borders and transportation corridors, not strict meridian lines.
Alcalá de Guadaira: Size, Population, and Location
Alcalá de Guadaira has a population of approximately 70,155 people, placing it among smaller but notable cities. The city sits at 37°20'N, 5°50'W (decimal: 37.3379°, -5.8395°),37.3 degrees north of the equator.
At 37.3° latitude, Alcalá de Guadaira experiences moderate seasonal variation in day length, expect roughly 9-10 hours of daylight in winter and 14-16 hours in summer. Today, Alcalá de Guadaira sees sunrise at 06:53 and sunset at 18:17 local time. The IANA timezone Europe/Madrid groups Alcalá de Guadaira with nearby cities that share the same legal clock, even if they sit at slightly different longitudes with marginally different solar noon times.
Working Hours Overlap: Alcalá de Guadaira and Key Partners
Alcalá de Guadaira's standard working day (09:00–18:00 local, Europe/Madrid) translates to different hours for common international partners:
- San Francisco (America/Los_Angeles): Alcalá de Guadaira's workday runs 00:48 to 09:48 Pacific time.
- Berlin (Europe/Berlin): Alcalá de Guadaira's workday runs 09:48 to 18:48 Central European time.
Overlap windows, times when both cities are within 09:00–18:00, are the practical window for real-time collaboration. Use the time difference tool on this site to find the shared working window for any pair of cities.