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cover a time is the most popular phrase on the web.

cover a period 11,400,000 results on the web	cover a time 11,570,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
In the Bologna Declaration first level of university degrees should cover a period of three years. The examination will normally cover a period of not less than six months prior to the receipt of the request. Fiscalis 2020 should cover a period of seven years to align its duration with that of the multiannual financial framework laid down in Council Regulation (EU, Euratom) No 1311/2013 [2]. Provided that such regular review is ensured, the approval of the scheme may cover a period longer than six months and up to two years in principle. However, in the case of public contracts for social and other specific services, the prior information notice referred to in point (b) of Article 75(1) may cover a period which is longer than 12 months. It may not cover a period lasting longer than a year. That communication of the measures may cover a period of up to five years in the case of a demarcated area subject to containment measures in accordance with Article 7. However, in the case of contracts for social and other specific services, the periodic indicative notice referred to in point (b) of Article 92(1) may cover a period which is longer than 12 months.	It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

cover a period

11,400,000 results on the web

cover a time

11,570,000 results on the web

More popular!

In the Bologna Declaration first level of university degrees should cover a period of three years.
The examination will normally cover a period of not less than six months prior to the receipt of the request.
Fiscalis 2020 should cover a period of seven years to align its duration with that of the multiannual financial framework laid down in Council Regulation (EU, Euratom) No 1311/2013 [2].
Provided that such regular review is ensured, the approval of the scheme may cover a period longer than six months and up to two years in principle.
However, in the case of public contracts for social and other specific services, the prior information notice referred to in point (b) of Article 75(1) may cover a period which is longer than 12 months.
It may not cover a period lasting longer than a year.
That communication of the measures may cover a period of up to five years in the case of a demarcated area subject to containment measures in accordance with Article 7.
However, in the case of contracts for social and other specific services, the periodic indicative notice referred to in point (b) of Article 92(1) may cover a period which is longer than 12 months.

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.