If you are visiting Copenhagen in the near future, you can expect some road works and metro construction going on. Here is a list of where it will impact bike and car traffic as well as public transport in Copenhagen. And remember after rain comes sunshine.
The A-buses are the primary buses in central Copenhagen. They drive every 3-7 minutes during rush hour (which is between 07:00-09:00 in the morning and 15:30-17:30 in the afternoon) and usually about every 10 minutes before and after rush hour. The A-buses serve at all hours.
The S-buses drive every 5-10 minutes during rush hour and every 20 minutes outside of rush hour. The S-buses are faster than the A-busses due to fewer stops. They usually serve between 06:00 in the morning and 01:00 at night.
Night buses are in service between 01:00 and 05:00 in the night. You can recognise the bus stops by the grey colour of the bus stop signs. The night buses are all N buses, for an example 85N.
The metro is in service all day and all night, every day of the week.
There are 2-4 minutes between each train during rush hour, and 3-6 minutes outside rush hour and during the weekends. Friday and Saturday night (after 01:00) trains arrive with a 7-15 minutes interval and a 20 minutes interval after midnight on weekdays (Sunday through Thursday).
Please note that maintenance of the rails may occur during the night, which can result in a slightly longer journey. The maintenance is between 01:00-01:25 and again between 04:15-04:45.
The S-trains run between 05:00 in the morning and 00:30 at night. Line F runs every 4-5 minutes, line A, B, C and E run every 10 minutes, and line H and Bx run every 20 minutes.
On Friday and Saturday the trains run once an hour between 01:00 and 05:00. However, line F runs every half hour during these hours.