Seemingly identical queries returning different results

queries.sql

-- In first version WHERE is outside JOIN:

SELECT * FROM t1
  INNER JOIN t2 ON t1.t2_id = t2.id
WHERE t2.some_boolean;


-- In second version condition is lifted into JOIN condition

SELECT * FROM t1
  INNER JOIN t2 ON t1.t2_id = t2.id
  AND t2.some_boolean;

real_queries.sql

-- First version:

=# WITH q_geocodes(name, id, utc_offset) AS (VALUES ('SF', 6096070, -7),('NYC', 6164533, -4))

SELECT
  q_geocodes.name,
  COUNT(events.*)

  FROM q_geocodes
    INNER JOIN places ON q_geocodes.id = places.geocode_id
    INNER JOIN events AS events
      ON events.place_id = places.id
      AND events.category_id = 8
      AND ((EXTRACT(EPOCH FROM end_time) - EXTRACT(EPOCH FROM start_time)) BETWEEN (4*3600) AND (12*3600)
      AND EXTRACT(HOUR FROM end_time) BETWEEN (4 - utc_offset) AND (12 - utc_offset)) AND EXTRACT(DOW FROM end_time) IN (6,0)
  WHERE places.category_id = 2 AND (place_events_count > 2)
  GROUP BY q_geocodes.name, q_geocodes.utc_offset;
 name | count
------+-------
 SF   |  3423
 NYC  |  2950
(2 rows)


-- Second version:

=# WITH q_geocodes(name, id, utc_offset) AS (VALUES ('SF', 6096070, -7),('NYC', 6164533, -4))

SELECT
  q_geocodes.name,
  COUNT(events.*)

  FROM q_geocodes
    INNER JOIN places
      ON q_geocodes.id = places.geocode_id
      AND places.category_id = 2 AND place_events_count > 2
    INNER JOIN events AS events
      ON events.place_id = places.id
      AND ((EXTRACT(EPOCH FROM end_time) - EXTRACT(EPOCH FROM start_time)) BETWEEN (4*3600) AND (12*3600)
      AND EXTRACT(HOUR FROM end_time) BETWEEN (4 - utc_offset) AND (12 - utc_offset)) AND EXTRACT(DOW FROM end_time) IN (6,0)
  GROUP BY q_geocodes.name, q_geocodes.utc_offset;
 name | count
------+-------
 SF   |  3933
 NYC  |  3478
(2 rows)

The real queries are identical except that places.category_id = 2 AND place_events_count > 2 is given either as a WHERE, or an ON.

To my mind this makes it the same as the simplified example, yet I'm getting different results.