Quote

"In time of public emergency which threatens the life of the nation and the existence of which is officially proclaimed, the States Parties to the present Covenant may take measures derogating from their obligations under the present Covenant to the extent strictly required by the exigencies of the situation, provided that such measures are not inconsistent with their obligations under international law and do not involve discrimination solely on the ground of race, colour, sex, language, religion or social origin."

Document

UNGA: International Covenant on Civil and Political Rights, art. 4.1

Download Document

International Covenant on Civil and Political Rights

Summaries

At times, in a state of emergency, it may be necessary for a state to relax the full protection of human rights and electoral obligations or derogate their obligations.
Temporary postponement of voting processes due to a public emergency is permitted, but only to the extent required by the circumstances, provided that such measures are not contrary to a state's obligations under international law.