401.

June solstice 21 June will be the longest day of 1956 in the northern hemisphere. Thu, 21 Jun 1956 at 06:30 EDT (24,840 days ago) in Gemini

402.

March equinox Day and night have equal length, marking the beginning of spring in the northern hemisphere and autumn in the southern hemisphere. Tue, 20 Mar 1956 at 10:27 EDT (24,933 days ago) in Pisces

403.

The Earth at perihelion The Earth reaches its closest point to the Sun. Mon, 02 Jan 1956 at 08:23 EDT (25,011 days ago) in Pisces

404.

December solstice 22 December will be the shortest day of 1955 in the northern hemisphere. Thu, 22 Dec 1955 at 10:17 EDT (25,022 days ago) in Sagittarius

405.

September equinox Day and night have equal length, marking the beginning of autumn in the northern hemisphere and spring in the southern hemisphere. Fri, 23 Sep 1955 at 15:47 EDT (25,112 days ago) in Virgo

406.

The Earth at aphelion The Earth reaches its furthest point from the Sun. Mon, 04 Jul 1955 at 18:04 EDT (25,193 days ago) in Pisces

407.

June solstice 22 June will be the longest day of 1955 in the northern hemisphere. Wed, 22 Jun 1955 at 00:38 EDT (25,205 days ago) in Gemini

408.

March equinox Day and night have equal length, marking the beginning of spring in the northern hemisphere and autumn in the southern hemisphere. Mon, 21 Mar 1955 at 04:42 EDT (25,298 days ago) in Pisces

409.

The Earth at perihelion The Earth reaches its closest point to the Sun. Tue, 04 Jan 1955 at 07:20 EDT (25,374 days ago) in Pisces

410.

December solstice 22 December will be the shortest day of 1954 in the northern hemisphere. Wed, 22 Dec 1954 at 04:31 EDT (25,387 days ago) in Sagittarius

411.

September equinox Day and night have equal length, marking the beginning of autumn in the northern hemisphere and spring in the southern hemisphere. Thu, 23 Sep 1954 at 10:02 EDT (25,477 days ago) in Virgo

412.

The Earth at aphelion The Earth reaches its furthest point from the Sun. Sat, 03 Jul 1954 at 15:53 EDT (25,559 days ago) in Pisces

413.

June solstice 21 June will be the longest day of 1954 in the northern hemisphere. Mon, 21 Jun 1954 at 19:01 EDT (25,571 days ago) in Gemini

414.

March equinox Day and night have equal length, marking the beginning of spring in the northern hemisphere and autumn in the southern hemisphere. Sat, 20 Mar 1954 at 22:59 EDT (25,664 days ago) in Pisces

415.

The Earth at perihelion The Earth reaches its closest point to the Sun. Sat, 02 Jan 1954 at 03:18 EDT (25,741 days ago) in Pisces

416.

December solstice 22 December will be the shortest day of 1953 in the northern hemisphere. Mon, 21 Dec 1953 at 22:37 EDT (25,753 days ago) in Sagittarius

417.

September equinox Day and night have equal length, marking the beginning of autumn in the northern hemisphere and spring in the southern hemisphere. Wed, 23 Sep 1953 at 04:11 EDT (25,842 days ago) in Virgo

418.

The Earth at aphelion The Earth reaches its furthest point from the Sun. Sun, 05 Jul 1953 at 14:18 EDT (25,922 days ago) in Pisces

419.

June solstice 21 June will be the longest day of 1953 in the northern hemisphere. Sun, 21 Jun 1953 at 13:05 EDT (25,936 days ago) in Gemini

420.

March equinox Day and night have equal length, marking the beginning of spring in the northern hemisphere and autumn in the southern hemisphere. Fri, 20 Mar 1953 at 17:05 EDT (26,029 days ago) in Pisces