What's the longest time you've taken on a move?

I was browsing Sensei's Library (http://senseis.xmp.net) idly, and came across an interesting tidbit -

Apparently, Takemiya Masaki once thought for five hours before making a move. Unbelievable, isn't it?

What a complicated game Go is..

For myself, the longest time I ever spent on a move was about three minutes.

In a casual online game, maybe 5 minutes. In a 1 hour main time tournament, it's not uncommon for me to spend 10 minutes, maybe even 15 on a key move. That's probably not a good idea given how badly I play in byo-yomi, indeed I just lost the Cambridge tournament yesterday like this! In the 3-hour British Championship games I think I spent 20-30 minutes on some moves. On OGS the move can take days or weeks, but how much of that is thinking time? In my game against breakfast I spent over 1 hour studying variations on some moves. There was also a game on OGS I played against Prodigious many years ago which I paused to go on a holiday around the Balkans, which included a long train journey from Serbia to Montengro (beautiful scenery, highly recommended!). During this journey (and other times sitting on buses etc.) I drew the game position (which was in early endgame but still with some fighting and trades potential) and counted and planned the rest of the game for a total of probably more than 8 hours, so that's my record.

According to http://senseis.xmp.net/?LongestTimeSpen ... AboutAMove

..the longest time taken by a professional on a move was eight hours, by Honinbo Shusai. Unbelievable!

When I was a shodan I had a 2 dan friend who was a slow player. My games typically lasted about one hour, but a game against him would last about two and a half hours. Once we played a ten game match and we agreed to play without time limits. Not that we used clocks, but I wanted to use about as much time as he did, which could mean four or five hour games. In one game I saw an unusual sacrifice in the center of the board that would allow me to cut his groups in two, but without a clear advantage. I took two and a half hours on that move.

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The Adkins Principle:
At some point, doesn't thinking have to go on?
— Winona Adkins

Visualize whirled peas.

Everything with love. Stay safe.

I love to take my time to make a move I think is good. But I don't, usually. No matter what time settings I offer in online games, even if just 20 minutes each, I always feel that my opponent is exasperated with how long I take to play. I'm pretty sure I just play at a kind of normal pace, but when my opponent consistently places his or her stone right after I've place mine, it makes me feel on edge. Against my better judgement, I hurry up a little.

Sometimes I get a comment, like "play", or "pls hurry up", or sometimes it's just a dreaded question mark "?". Bearing in mind, these are games where the opponent has accepted the time limit.

I recently had a teaching game where the teacher urged me to slow down. That was nice to hear.

I've never taken longer than three minutes to make a move.

I don't know the answer, but I doubt I have taken more than a couple of minutes over a move in the last twenty years. Maybe in the previous twenty I reached ten minutes once or twice, but I don't actually recall doing so.

The longest time it took me to make a move was the first one I ever made. It took me all of 21 year and 4 months to get round to playing that first ever move.

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Still officially AGA 5d but I play so irregularly these days that I am probably only 3d or 4d over the board (but hopefully still 5d in terms of knowledge, theory and the ability to contribute).

If my opponent complains about how long I'm taking to play, I remind him that he accepted the time settings I put up, and I'm going to use that time if I feel I need to.

That having been said, unless I'm trying to read out a ladder/L&D position or count score, if I can't find anything good to play after 60-90 seconds, all the time in the world isn't going to help me.

I've played a few 3 minute moves in tournaments. Online, I often play blitz in slow motion, but will slow down for particular moves. Sometimes I will come back to the same move day after day. On those occasions, I might end up taking 30 minutes, but it's not consecutive, and I probably end up revisiting the same versions.

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Occupy Babel!

If you haven't gone into byoyomi by the end of the game, you're playing too fast. It's difficult, I know, but you have to ignore those "?" comments.

Personally, in general I find it quite hard to play long/serious games on the Internet. I find reading hard/effortful, so am generally not motivated to put in this effort for games where little is at stake. I thus avoid long game offers, and stick to games with main time < 10 minutes.