The date cannot be looked up far in advance with certainty, the shutdown is longer than the holiday, and the direction of travel is the opposite of what a visitor expects. All three are worth knowing before booking anything in the weeks around Idul Fitri.
How the date is actually set
Indonesia determines Idul Fitri by observation. The religious affairs ministry convenes a sidang isbat, an evidentiary sitting, and rules on whether the crescent was seen against the MABIMS criteria of at least 3 degrees elevation and 6.4 degrees elongation.
For 1447 H that sitting was held on Thursday 19 March 2026. Observers at 117 points across Indonesia saw no crescent, and computed elevation ranged from 0°54' to 3°07' with elongation 4°32' to 6°06', below the threshold. Ramadan was therefore completed, and 1 Syawal 1447 H fell on Saturday 21 March 2026.
For 1448 H the holiday decree gives 10 to 11 March 2027. The decree itself notes that Islamic holiday dates are set by ministerial decision, so that date is provisional until the 2027 sitting. Our guide to when the wet season actually starts covers that separately.
The shutdown is set by a three-minister decree
National holidays and cuti bersama, collective leave, are set annually by a joint decree of the ministers of religion, manpower and administrative reform.
The 2026 decree, signed 19 September 2025, gave 17 national holidays and 8 collective leave days. Around Idul Fitri the holiday fell on 21 and 22 March, a Saturday and Sunday, with collective leave on 18, 20, 23 and 24 March.
The 2027 decree, signed 15 September 2026, gives 18 national holidays and 8 collective leave days, with the holiday on Wednesday 10 and Thursday 11 March and collective leave on 9, 12 and 15 March. Read together, that produces seven consecutive non-working days from Tuesday 9 to Monday 15 March 2027.
The scale, and where everyone goes
The transport ministry's survey projected 143.92 million travellers for 2026 and its directorate later reported an actual 147.55 million, exceeding the projection. A separate ministerial statement in February 2026 gave the projection as 143.7 million; both are official and the gap is small.
Public transport carried 10,887,584 people between 13 and 21 March 2026, up 8.58 percent on 2025, split as rail 3,349,343, ferry 2,664,004, air 2,397,192, bus 1,693,931 and sea 783,114. On Idul Fitri day itself, 193,237 vehicles left Jakarta through toll gates against 122,074 entering.
Safety improved: 3,517 accidents, down 6.31 percent, with deaths falling from 436 to 300, down 31.19 percent.
What happens to the roads
Traffic engineering on the Java trunk corridor is published in advance. For 2026 the one-way scheme ran 17 to 20 March from kilometre 70 of the Jakarta-Cikampek toll road to kilometre 421 on the Semarang-Solo road, between noon and midnight, reversing 23 to 29 March for the return flow.
Contraflow ran on the Jakarta-Cikampek section between kilometres 47 and 70, and on the Jagorawi road on 24 and 29 March. Odd-even number plate restrictions applied 17 to 20 March from kilometre 47 to kilometre 414 and on the Tangerang-Merak road.
Goods vehicles of three axles and above were banned from 13 March 00:00 to 29 March 24:00 on listed corridors including Jakarta to Banten and Jakarta to West Java, with fuel, gas, livestock, staple foods and disaster-relief vehicles exempt. Forty-eight weighbridges were closed and converted to rest stops. There is a companion piece on sea and air network capacity.
Booking rail, air and sea
The state rail operator sells regular tickets 45 calendar days before departure, released progressively each day, through its app and booking site. Additional trains are announced on a rolling basis as demand emerges rather than all at H-45, so one check is not enough. For 2026 roughly sixty additional intercity services were added, with a 30 percent discount on non-subsidised economy class for travel 14 to 29 March.
On the air side the civil aviation directorate wrote to all domestic operators permitting extra flights on all routes from 14 to 29 March, subject to route licence and slot availability, with no total number set because the decision rests with airlines. A fare package cut economy fares 17 to 18 percent from the upper limit.
At sea, 829 vessels were prepared across 636 ports with capacity for up to 3.26 million passengers, and a 30 percent discount applied on state-line ships. Geofencing at Ketapang, Gilimanuk, Merak and Bakauheni prevents ticket purchase within a set radius of the port.
What stays open
The government set flexible working, described as work from anywhere, for private-sector employees on 16 to 17 March and 25 to 27 March 2026. The exclusion list is the useful part for a visitor: health services, hotels, shopping centres, manufacturing and food and beverage were outside the scheme, meaning they were expected to keep operating.
The measure was explicitly not leave, with wages paid normally. A transport ministry statement gives the return-leg dates as 25 to 26 March rather than 25 to 27; the labour ministry version is the one tied to the implementing circular. The adjacent question of cash and QRIS access is treated separately.
What this guide does not cover
How long ordinary shops and offices close is not stated, because no official source publishes it and the collective leave decree binds government rather than private business. Commuter rail schedule changes for 2026 could not be verified; the operator's pages were unreachable. Cumulative Jakarta-area vehicle counts from the toll operator are omitted for the same reason. No official source addresses whether Ramadan fasting shortens business hours, so no claim is made. The decree number governing the toll traffic schemes could not be confirmed. Prices and fares are outside scope, and the 2027 dates are provisional.