Birthday

Characters who have reached their Birthday will send the player a mail with their Special Dish and one or more additional gifts. Characters will always mention these miscellaneous gifts in their letter, but rarely the special dish that is also attached.
It is not required to own the specific characters, as players will receive the celebratory mail, regardless. However, the mail is only sent on log-in of that specific day and will not be able to be received the day after.
Birthday Mail will be automatically transferred into the Gift Mail Box after the player has collected the rewards. Mail within this Box will not be quick-deleted, and will not expire over time.
==Notes==
* A character's Birthday Mail does not adhere to the server's daily reset timer; The Mail will be received when the server's time passes 00:00 (Midnight).
* A character's Birthday Mail is only available for that particular day, from 00:00 to 23:59. The player must log in to the game during that time period to receive the mail. If a player logs on at 00:01 the following day, despite being in the same server reset cycle, the mail will not be received.
* Currently, a character's Birthday Mail is one of the only ways to receive their special dish if the player does not own the character in question. Another way to obtain certain special dishes is to unlock different endings of Hangout Events.
==The Traveler==
The Traveler's birth date depends on the player's choice in their profile customization and cannot be changed again once set. Once the Traveler celebrates their birthday, the Dev Team, via the mailing system, will send birthday wishes, along with a special gift of one Cake for Traveler, which rewards one Fragile Resin and an unusable version of the cake when used.
On top of this, any characters the player currently has will have their "Birthday" voice-over permanently unlocked. Future characters that the player obtains after their birthday has passed will still have their "Birthday" voice-over unlocked.
It is important to note that setting your birthday to a date that has already passed in the current year will not give you a cake. You will not receive your cake for that year.
==Table of Birthdays==
IconNameBirthdayBirthday Pages
==Trivia==
* For the Raiden Shogun's 2022 birthday mail, Miko sends the mail instead, which makes Raiden Shogun the only character to not send their own birthday mail and Miko the only character who sends somebody else's birthday mail in addition to their own.
* The player may rename the Wanderer during Archon Quest As Though Morning Dew in Interlude Chapter: Act III - Inversion of Genesis, and the name chosen will be reflected in Wanderer's birthday mail as well.
===Preservation===
* If not in the Gift Mail Box, Birthday Mail has an expiration time of 365 days.
** Before Version 1.3, only the Traveler's Birthday Mail had an expiration time of 365 days, while Birthday Mails for other characters had an expiration time of 30 days.
* Birthday Mail that was received before the implementation of the Gift Mail Box in Version 2.4 was automatically moved into the Gift Mail Box as long as the mail remained in the player's Mailbox.
*Due to the shorter expiration time, it is not possible for the Gift Mail Box to have any Birthday Mail (except for Traveler's) that was received before Version 1.3:
** Xingqiu 2020
** Xiangling 2020
** Keqing 2020
** Sucrose 2020
** Kaeya 2020
** Zhongli 2020
** Diona 2021
** Traveler Year 1 (if received before January 5, 2021)
===Dates===
* Characters whose birthdays are on February 29 will have their birthday mails sent on February 28 during non-leap years. This includes Bennett, as well as the player should their birthday be set to that date.
* Characters who share the same birthday:
** Lynette and Lyney: February 2
** Arataki Itto and Paimon: June 1
** Klee and Kuki Shinobu: July 27
* The character whose first birthday mail was delivered the soonest after their release date was Chevreuse. Her release was on January 9, 2024, and her first birthday mail was delivered 1 day later on January 10, 2024.
* The character whose first birthday mail was delivered the latest after their release date was Kamisato Ayato. His release was on March 30, 2022, 4 days after his birthday, causing his first birthday mail to be delivered 361 days later on March 26, 2023.
* The first to celebrate their birthday in a year is Wanderer, and the last to celebrate their birthday in a year is Zhongli.
===Attachments===
* Paimon and the Raiden Shogun's birthday mails do not include a special dish. 
* Ningguang is the only character that directly names the special dish attached in her letter, although Xiangling comes close in her 2020 letter ("Wanmin Restaurant's authentic Boiled Fish"). Other characters refer to their dish without naming it, only mention they cooked something, only mention having a meal together, refer to another edible item in the mail instead, refer to other food entirely, or do not refer to food in any way at all.
* Characters who have sent more than one of their special dish:
** Beidou 2021: 
** Noelle 2021: 
** Ningguang 2021: 
* Characters who have sent dishes that can be cooked in-game besides their own Special Dishes:
** Noelle 2021: 
** Xiangling 2021: 
** Thoma 2022: and 
** Yun Jin 2022: 
** Yoimiya 2022: 
** Raiden Shogun 2022: and 
** Ningguang 2022: and 
** Kaeya 2022: 
** Wanderer 2023: and 
** Thoma 2023: and 
** Yaoyao 2023: and 
** Noelle 2023: and 
** Lisa 2023: 
** Yoimiya 2023: 
** Raiden Shogun 2023: , and 
** Kuki Shinobu 2023: and 
** Mika 2023: and 
** Albedo 2023: 
** Kaeya 2023: and 
** Layla 2023: 
** Tighnari 2023: and 
** Thoma 2024: and 
** Chevreuse 2024: 
** Diona 2024: and 
** Sangonomiya Kokomi 2024: and 
** Yaoyao 2024: and 
** Shenhe 2024: and 
** Rosaria 2025: 
* Characters who have sent consumable Food that cannot be cooked:
** Kaeya 2020: 
** Diluc 2021: 
** Albedo 2021: 
** Yun Jin 2022: 
** Lisa 2022: 
** Raiden Shogun 2022: 
** Kaeya 2022: 
** Rosaria 2023: 
** Rosaria 2024: and 
** Lisa 2024: 
*If the player has 20 Qingxin Seed in their Seed Dispensary when receiving Ganyu's 2021 birthday mail, they would be unable to claim any of the mail's rewards and would be met with a "No space left in inventory for another Qingxin Seed. Please free up some space and try again." message. As it was not possible to delete seeds from the dispensary, the player needed to plant at least 1 Qingxin in their Serenitea Pot before being able to claim the rewards.
===Voice-Overs===
*Mualani has the longest message for the Traveler in her "Birthday" voiceline.
*The Raiden Shogun has two birthday voicelines, one from The Shogun ("Birth Date") and one from Ei ("Birthday").
**Yae Miko also has a birthday voiceline called "Birth Date."
*Xingqiu also has two separate birthday voicelines for the Traveler: "Birthday: Wishing," and "Birthday: Customs."
*Ningguang has two separate birthday voicelines for Lumine and Aether; only one is available in-game depending on which Traveler you chose.
==Navigation==
es:Cumpleaños
fr:Anniversaire
id:Ulang Tahun
ja:誕生日
pl:Urodziny
pt-br:Aniversário
ru:День рождения
th:วันเกิด
tr:Doğum günü
uk:День народження
vi:Sinh Nhật
zh:生日