• Hatarat Nedarim (Nullification of Vows) after the Shachrit (morning) prayers.
• Prepare a candle or flame that will be able to burn safely for more than 24 hours. (For example: a Yahrzeit candle. This will be used to light the Yom Tov Candles on Shabbos night).
• Light Yom Tov Candles -- 18 minutes before Sunset (6:55pm).
• After lighting the candles, recite (Blessing for Shabbos & Rosh Hashana):
  
  
  • Bo-ruch A-toh Ado-noi E-lo-hei-nu Me-lech Ho-olom A-sher Ki-de-sho-nu Be-mitz-vo-sov Ve-tzi-vo-nu Le-had-lik Ner Shel Shabbos V'Shel Yom Ha-zi-ko-ron.
  • Bo-ruch A-toh Ado-noi E-lo-hei-nu Me-lech Ho-olom She-heche-yo-nu Ve-ki-yi-mo-nu Ve-higi-o-nu Liz-man Ha-zeh.
• בָּרוּךְ אַתָּה ה’ אֱלֹקֵינוּ מֶלֶךְ הָעוֹלָם, אֲשֶׁר קִדְשָׁנוּ בְּמִצְוֹתָיו, וְצִוָּנוּ לְהַדְלִיק נֵר שֶׁל שַׁבָּת וְשֶׁל יוֹם הַזִּכָּרוֹן.
• בָּרוּךְ אַתָּה ה’ אֱלֹקֵינוּ מֶלֶךְ הָעוֹלָם, שֶׁהֶחֱיָנוּ וְקִימָנוּ וְהִגִּיעָנוּ לִזְּמַן הַזֶּה.

• Light Yom Tov Candles after nightfall (7:53pm), from a pre-existing flame.
• After lighting the candles, recite (Blessing for Rosh Hashana):
  
  
  • Bo-ruch A-toh Ado-noi E-lo-hei-nu Me-lech Ho-olom A-sher Ki-de-sho-nu Be-mitz-vo-sov Ve-tzi-vo-nu Le-had-lik Ner Shel Yom Ha-zi-ko-ron.
  • Bo-ruch A-toh Ado-noi E-lo-hei-nu Me-lech Ho-olom She-heche-yo-nu Ve-ki-yi-mo-nu Ve-higi-o-nu Liz-man Ha-zeh.
• בָּרוּךְ אַתָּה ה’ אֱלֹקֵינוּ מֶלֶךְ הָעוֹלָם, אֲשֶׁר קִדְשָׁנוּ בְּמִצְוֹתָיו, וְצִוָּנוּ לְהַדְלִיק נֵר שֶׁל יוֹם הַזִּכָּרוֹן.
• בָּרוּךְ אַתָּה ה’ אֱלֹקֵינוּ מֶלֶךְ הָעוֹלָם, שֶׁהֶחֱיָנוּ וְקִימָנוּ וְהִגִּיעָנוּ לִזְּמַן הַזֶּה.

NOTE: A pre-existing flame is a flame burning continuously since the onset of the festival, such as a pilot light, gas or candle flame.

• Blowing of Shofar.
• The Tashlich service in the afternoon.
• Yom Tov ends after nightfall (7:51pm).