Export Chrome/Chromium history directly from the browser's database. Based on http://stackoverflow.com/questions/2141537/convert-datetime-fields-in-chrome-history-file-sqlite-to-readable-format/3174614#3174614 , but works with more recent versions of the browser.

chrome_history.py

#!/usr/bin/env python

import os
import sys
import datetime
import sqlite3

SQL_VISITS = 'select v.visit_time, u.url from visits v inner join urls u on (v.url = u.id) order by v.visit_time'


def date_from_webkit(webkit_timestamp):
    epoch_start = datetime.datetime(1601, 1, 1)
    delta = datetime.timedelta(microseconds=int(webkit_timestamp))
    return epoch_start + delta


def main(db_filename):
    assert os.path.exists(db_filename)
    c = sqlite3.connect(db_filename)

    visits = list((date_from_webkit(row[0]), row[1]) for row in c.execute(SQL_VISITS))
    for v in visits:
        print('"{}", "{}"'.format(*v))

    c.close()
    return 0

if __name__ == '__main__':
    if len(sys.argv) < 2:
        print("Usage: {} <path-to-chrome-history-file>".format(sys.argv[0]))
        print("   for Chromium 38 on MacOS: ~/Library/Application\ Support/Chromium/Default/History ")
        sys.exit(1)
    else:
        sys.exit(main(sys.argv[1]))