There are so many countries that doesn't have national holidays support including MAJOR COUNTRIES (ex. Japan, South Korea, Singapore...)

Also we want national holiday in local languages names not only in English.

These are the countries without national holiday support

A

Afghanistan
Algeria
Angola
Antigua and Barbuda
Armenia
Azerbaijan

B

The Bahamas
Bahrain
Bangladesh
Barbados
Belarus
Belize
Benin
Bhutan
Bolivia
Bosnia and Herzegovina
Botswana
Brunei
Bulgaria
Burkina Faso
Burundi

C

Cabo Verde
Cambodia
Cameroon
Central African Republic
Chad
Chile
China
Comoros
Congo, Democratic Republic of the
Congo, Republic of the
Costa Rica
Côte d’Ivoire
Cuba
Cyprus

D

Djibouti
Dominica
Dominican Republic

E

East Timor (Timor-Leste)
Ecuador
El Salvador
Equatorial Guinea
Eritrea
Eswatini
Ethiopia

F

Fiji

G

Gabon
The Gambia
Georgia
Ghana
Grenada
Guatemala
Guinea
Guinea-Bissau
Guyana

H

Haiti
Honduras

I

Iran
Iraq
Israel

J

Jamaica
Japan
Jordan

K

Kazakhstan
Kenya
Kiribati
Korea, North
Korea, South
Kosovo
Kuwait
Kyrgyzstan

L

Laos
Lebanon
Lesotho
Liberia
Libya
Liechtenstein

M

Madagascar
Malawi
Malaysia
Maldives
Mali
Marshall Islands
Mauritania
Mauritius
Mexico
Micronesia, Federated States of
Moldova
Mongolia
Mozambique
Myanmar (Burma)

N

Namibia
Nauru
Nepal
New Zealand
Nicaragua
N iger
Nigeria

O

Oman

P

Pakistan
Palau
Panama
Papua New Guinea
Paraguay
Philippines

Q

Qatar

R

Romania
Russia
Rwanda

S

Saint Kitts and Nevis
Saint Lucia
Saint Vincent and the Grenadines
Samoa
Sao Tome and Principe
Saudi Arabia
Senegal
Serbia
Seychelles
Sierra Leone
Singapore
Solomon Islands
Somalia
Sri Lanka
Sudan
Sudan, South
Suriname
Syria

T

Taiwan
Tajikistan
Tanzania
Thailand
Togo
Tonga
Trinidad and Tobago
Tunisia
Turkey
Turkmenistan
Tuvalu

U

Uganda
United Arab Emirates
Uruguay
Uzbekistan

V

Vanuatu
Vatican City
Venezuela
Vietnam

Y

Yemen

Z

Zambia
Zimbabwe