On arrival
- Asunción and Recife are in the same time zone — no jet lag adjustment needed.
Jet lag plan
Asunción and Recife share the same time zone.
About 3,074 km northeast · approximately 4.5-hour non-stop flight · a long-haul flight.
The route from Asunción, Paraguay to Recife, Brazil covers roughly 3,074 kilometres in a northeast direction. At standard jet cruise speed plus a one-hour allowance for taxi, climb, and descent, a non-stop flight takes about 4.5 hours. Both cities sit in the southern hemisphere, so summer and winter align. June is the depth of winter at both ends; December is peak daylight.
Asunción is in the subtropics. Day length varies by roughly two hours between summer and winter; light remains a reliable circadian cue most of the year. Recife sits within ten degrees of the equator, so day length is nearly constant year-round (about 12 hours). Sunset and sunrise stay close to 06:00 and 18:00 regardless of season.
Standard 09:00–18:00 working hours at both ends of this route overlap by approximately 9 hours. In Asunción that window runs 09:00 to 18:00; in Recife it is 09:00 to 18:00. This is the realistic window for live meetings, customer calls, or pair work without forcing either end out of normal hours.
Neither city observes daylight saving time, so the hour offset on this route is fixed year-round. This makes recurring schedules and calendar invites with collaborators on the other end safer than for DST-observing pairs.
The great-circle distance from Asunción to Recife is about 3,074 kilometres. A typical non-stop flight takes around 4.5 hours at standard cruise speed; routes with connections add two to four hours.
Asunción and Recife share the same time zone, so there is no clock offset on this route.
No circadian shift is required between these two cities.
For a shift of 0 hours, melatonin offers little benefit beyond what consistent light exposure already provides. The Cochrane review on jet-lag melatonin shows the strongest effects on shifts of five hours or more.
For a shift under two hours, pre-trip adjustment is usually not worth the effort.
Chronotype does not affect adjustment on a same-time-zone route.