The traditional almanac 通勝 approach to choosing when to open a business: find a day the almanac marks as favourable 宜, then check that neither person's clash zodiac falls on that day. These are tendencies, not guarantees — tradition treats timing as one factor among many.
Open for business / launch 开市Send betrothal gifts 纳采Engagement 订盟
Clash: rest day if you were born in a Monkey 猴 year
宜
Mon2027-08-16七月十五Day officer: Danger 危
Open for business / launch 开市Wedding / marriage 嫁娶Consecrate statues (kai guang) 开光
Clash: rest day if you were born in a Rooster 鸡 year
宜
Tue2027-08-17七月十六Day officer: Success 成
Open for business / launch 开市Install machinery 安机械Send betrothal gifts 纳采
Clash: rest day if you were born in a Dog 狗 year
宜
Sat2027-08-28七月廿七Day officer: Danger 危
Open for business / launch 开市Engagement 订盟Send betrothal gifts 纳采
Clash: rest day if you were born in a Rooster 鸡 year
宜
Sun2027-08-29七月廿八Day officer: Success 成
Open for business / launch 开市Wedding / marriage 嫁娶Worship ancestors / make offerings 祭祀
Clash: rest day if you were born in a Dog 狗 year
宜
Mon2027-08-30七月廿九Day officer: Receive 收
Open for business / launch 开市Wedding / marriage 嫁娶Engagement 订盟
Clash: rest day if you were born in a Pig 猪 year
宜
Tue2027-08-31七月三十Day officer: Open 开
Open for business / launch 开市Wedding / marriage 嫁娶Engagement 订盟
Clash: rest day if you were born in a Rat 鼠 year
September 9月
宜
Sat2027-09-11八月十一Day officer: Success 成
Open for business / launch 开市Trade / do deals 交易Sign contracts 立券
Clash: rest day if you were born in a Pig 猪 year
宜
Thu2027-09-16八月十六Day officer: Remove 除
Open for business / launch 开市Wedding / marriage 嫁娶Send betrothal gifts 纳采
Clash: rest day if you were born in a Dragon 龙 year
宜
Fri2027-09-17八月十七Day officer: Full 满
Open for business / launch 开市Send betrothal gifts 纳采Engagement 订盟
Clash: rest day if you were born in a Snake 蛇 year
宜
Thu2027-09-23八月廿三Day officer: Success 成
Open for business / launch 开市Wedding / marriage 嫁娶Send betrothal gifts 纳采
Clash: rest day if you were born in a Pig 猪 year
宜
Wed2027-09-29八月廿九Day officer: Full 满
Open for business / launch 开市Travel / go on a trip 出行Trade / do deals 交易
Clash: rest day if you were born in a Snake 蛇 year
October 10月
宜
Fri2027-10-01九月初二Day officer: Settle 定
Open for business / launch 开市Wedding / marriage 嫁娶造车器
Clash: rest day if you were born in a Goat 羊 year
宜
Tue2027-10-05九月初六Day officer: Success 成
Open for business / launch 开市Consecrate statues (kai guang) 开光Pray for children 求嗣
Clash: rest day if you were born in a Pig 猪 year
宜
Fri2027-10-08九月初九Day officer: Open 开
Open for business / launch 开市Wedding / marriage 嫁娶Worship ancestors / make offerings 祭祀
Clash: rest day if you were born in a Tiger 虎 year
宜
Mon2027-10-18九月十九Day officer: Success 成
Open for business / launch 开市Wedding / marriage 嫁娶Send betrothal gifts 纳采
Clash: rest day if you were born in a Rat 鼠 year
宜
Sun2027-10-24九月廿五Day officer: Full 满
Open for business / launch 开市Send betrothal gifts 纳采Engagement 订盟
Clash: rest day if you were born in a Horse 马 year
宜
Sat2027-10-30十月初二Day officer: Success 成
Open for business / launch 开市造车器Wedding / marriage 嫁娶
Clash: rest day if you were born in a Rat 鼠 year
November 11月
宜
Wed2027-11-03十月初六Day officer: Establish 建
Open for business / launch 开市Send betrothal gifts 纳采Engagement 订盟
Clash: rest day if you were born in a Dragon 龙 year
宜
Thu2027-11-04十月初七Day officer: Remove 除
Open for business / launch 开市Travel / go on a trip 出行造车器
Clash: rest day if you were born in a Snake 蛇 year
宜
Fri2027-11-05十月初八Day officer: Full 满
Open for business / launch 开市Ritual bathing / cleansing 沐浴理发
Clash: rest day if you were born in a Horse 马 year
宜
Sun2027-11-07十月初十Day officer: Balance 平
Open for business / launch 开市Wedding / marriage 嫁娶Consecrate statues (kai guang) 开光
Clash: rest day if you were born in a Monkey 猴 year
宜
Mon2027-11-08十月十一Day officer: Settle 定
Open for business / launch 开市Wedding / marriage 嫁娶Worship ancestors / make offerings 祭祀
Clash: rest day if you were born in a Rooster 鸡 year
宜
Thu2027-11-11十月十四Day officer: Danger 危
Open for business / launch 开市Send betrothal gifts 纳采Engagement 订盟
Clash: rest day if you were born in a Rat 鼠 year
宜
Sun2027-11-14十月十七Day officer: Open 开
Open for business / launch 开市Wedding / marriage 嫁娶Coming-of-age ceremony 冠笄
Clash: rest day if you were born in a Rabbit 兔 year
宜
Wed2027-11-17十月二十Day officer: Remove 除
Open for business / launch 开市Send betrothal gifts 纳采Engagement 订盟
Clash: rest day if you were born in a Horse 马 year
宜
Fri2027-11-19十月廿二Day officer: Balance 平
Open for business / launch 开市Travel / go on a trip 出行Receive money / collect payment 纳财
Clash: rest day if you were born in a Monkey 猴 year
宜
Fri2027-11-26十月廿九Day officer: Open 开
Open for business / launch 开市Receive money / collect payment 纳财Travel / go on a trip 出行
Clash: rest day if you were born in a Rabbit 兔 year
December 12月
宜
Wed2027-12-01冬月初四Day officer: Balance 平
Open for business / launch 开市Send betrothal gifts 纳采Move house / relocate 移徙
Clash: rest day if you were born in a Monkey 猴 year
宜
Thu2027-12-02冬月初五Day officer: Settle 定
Open for business / launch 开市Engagement 订盟Send betrothal gifts 纳采
Clash: rest day if you were born in a Rooster 鸡 year
宜
Mon2027-12-13冬月十六Day officer: Full 满
Open for business / launch 开市Send betrothal gifts 纳采Engagement 订盟
Clash: rest day if you were born in a Monkey 猴 year
宜
Fri2027-12-24冬月廿七Day officer: Remove 除
Open for business / launch 开市Engagement 订盟Send betrothal gifts 纳采
Clash: rest day if you were born in a Goat 羊 year
The right date also depends on the couple's charts 命 — zodiac, Day Master, and Four Pillars. A day the almanac marks as generally good may still conflict with one partner's clash day.
The Tung Shing 通勝 lists days where the favoured activities 宜 include 开市、开业. The day officer, heavenly stems, and earthly branches all contribute to the verdict.
Do these dates work for everyone?
These are general almanac days — a good starting point. Whether a specific date suits you personally also depends on your birth chart and zodiac. The tradition recommends checking that neither person's clash zodiac falls on the chosen day.