When you live in Seoul and try to install snap inside of your Ubuntu docker image:

Please select the geographic area in which you live. Subsequent configuration questions will narrow  
this down by presenting a list of cities, representing the time zones in which they are located.  

  1. Africa   3. Antarctica  5. Asia      7. Australia  9. Indian    11. Etc  
  2. America  4. Arctic      6. Atlantic  8. Europe     10. Pacific  12. Legacy  
Geographic area: 5  

Please select the city or region corresponding to your time zone.  

  1. Aden         19. Chongqing    37. Jerusalem     55. Novokuznetsk   73. Tashkent  
  2. Almaty       20. Colombo      38. Kabul         56. Novosibirsk    74. Tbilisi  
  3. Amman        21. Damascus     39. Kamchatka     57. Omsk           75. Tehran  
  4. Anadyr       22. Dhaka        40. Karachi       58. Oral           76. Tel_Aviv  
  5. Aqtau        23. Dili         41. Kashgar       59. Phnom_Penh     77. Thimphu  
  6. Aqtobe       24. Dubai        42. Kathmandu     60. Pontianak      78. Tokyo  
  7. Ashgabat     25. Dushanbe     43. Khandyga      61. Pyongyang      79. Tomsk  
  8. Atyrau       26. Famagusta    44. Kolkata       62. Qatar          80. Ulaanbaatar  
  9. Baghdad      27. Gaza         45. Krasnoyarsk   63. Qostanay       81. Urumqi  
  10. Bahrain     28. Harbin       46. Kuala_Lumpur  64. Qyzylorda      82. Ust-Nera  
  11. Baku        29. Hebron       47. Kuching       65. Riyadh         83. Vientiane  
  12. Bangkok     30. Ho_Chi_Minh  48. Kuwait        66. Sakhalin       84. Vladivostok  
  13. Barnaul     31. Hong_Kong    49. Macau         67. Samarkand      85. Yakutsk