"Page 116, “Time to Begin the Sabbath”—For a period of about ten years Sabbathkeeping Adventists observed the Sabbath from 6 P. M. Friday to 6 P. M. Saturday. Elder Joseph Bates in his first pamphlet on the perpetuity of the Sabbath of the fourth commandment, published in 1846, had given reasons for the supposed scriptural support for the observance of the Sabbath in this way. He cited the parable of the laborers in the vineyard, the last group of which had been called at “the eleventh hour” of the day and had wrought but one hour. The reckoning was made with them “when even was come.” Matthew 20:6, 8, 12 . Comparing this with Christ's question, “are there not twelve hours in the day?” He argued that the “even” began with the twelfth hour, or six o'clock, reckoning with equatorial time or the beginning of the sacred year. Respect for his years and experience and his godly life may have been the main reasons for accepting his conclusions without further investigation. 1T 713.2"
"So when even was come, the lord of the vineyard saith unto his steward, Call the labourers, and give them their hire, beginning from the last unto the first."
The EGW passage directly quotes and discusses Matthew 20:8 in the context of Joseph Bates' argument about the Sabbath.
"As time passed and the message spread, an increasing number of Sabbathkeepers questioned the practice and advocated the sunset time for reckoning the beginning of the Sabbath. A thorough Bible investigation of the question was made by Elder J. N. Andrews, who wrote a paper setting forth the Biblical reasons in favor of the sunset time. This paper was introduced and discussed on Sabbath, November 17, 1855, at the Conference in Battle Creek, Michigan, with the result that nearly, but not quite, all present were convinced that Elder Andrew's conclusion was correct. The presentation of the subject to Mrs. White in this vision, given two days later, answered the questions lingering in some minds and effected unity among the believers. Commenting on this experience, as illustrating the office of the visions to confirm conclusions based on Biblical study rather than to introduce new teachings, Elder James White wrote later: 1T 713.3"
"And the apostles and elders came together for to consider of this matter."
Both passages describe a group of leaders coming together to discuss and resolve a doctrinal issue. Acts 15:6 describes the apostles and elders meeting in Jerusalem, while the EGW passage describes a conference in Battle Creek. The parallel lies in the process of deliberation and seeking unity on a matter of faith.
"And when there had been much disputing, Peter rose up, and said unto them, Men and brethren, ye know how that a good while ago God made choice among us, that the Gentiles by my mouth should hear the word of the gospel, and believe."
Both passages describe a situation where there is much disputing before a resolution is reached. In Acts 15:7, Peter rises to speak after much disputing. In the EGW passage, the vision is given after a conference where not everyone was convinced. The parallel is the presence of disagreement and debate before a decision is made.