Thanks, Michael, for the quick answer. I was surprised that a change that I did a few days ago was updated within 12 hours while other updates did need much more time. No problem, I will be patient.

Best regards
Eckhard 

https://www.openstreetmap.org/user/EM311  

Am Do., 30. Apr. 2020 um 21:11 Uhr schrieb Michael Reichert <osm-ml@michreichert.de>:
Hi Eckhard,

Am 30/04/2020 um 16.35 schrieb Eckhard M:
> how long does it take that changes in the OSM data will be visible on the
> openrailwaymap.org web page?

The update timestamp in the upper left corner of the website provides
the time when diff updates were fetched the last time. Afterwards it
takes about one hour for processing until these changes are available in
the main database. Tile updates take longer (up to about two days) but I
plan to change the tile update in order to prioritise those tiles which
are visited more often (currently all tiles with changes get treated
equally).

Updates are currently applied 7 times per day.

You can check the freshness of map tiles at the debugging page at
https://tiles.openrailwaymap.org/#osm.org/10/50.124841/8.673023&overlays=infrastructure
by right-clicking on a tile and selecting the "tile status" option.

Best regards

Michael