With reference to the time of day. Relatively or unusually near to the beginning of either the day or night. Also (of an event or action): taking…

Pertaining to twilight; illuminated by twilight, dim, dusky.

Twilight. Frequently as a modifier or more fully in cockshut light, cockshut time, etc.

Formerly: †coming, taking place, etc., towards nightfall (obsolete). Now: in the direction of or leading towards the night; westward.

Of the nature of twilight; dim, dusky, indistinct. (literal and figurative.)

esp. Resembling or likened to the morning twilight as preceding the full light of day; characterized by (as yet) imperfect enlightenment.

reminiscent or suggestive of sunset; resembling the sunset, esp. in colour.

Dusky, as ‘It's getting a bit dimpsy’.