Neptune retrograde 1999: 1 period, 160 days inside the year — 43.8% of 1999. Neptune turned retrograde at 12:51 AM UTC on May 7 at 4°22′ Aquarius and turned direct at 1:35 AM UTC on October 14 at 1°35′ Aquarius.
Turns retrograde
May 7 12:51 AM UTC
Turns direct
Oct 14 1:35 AM UTC
Retrograde in 1999
160 days 43.8% of the year
Sign
Aquarius retreats 2.78°
Neptune’s path through 1999, day by day
Apparent position of Neptune against the zodiac, 1999
RetrogradeShadowR — stations retrograde · D — stations direct
Neptune starts 1999 at 1°03′ Aquarius and ends it at 3°10′ Aquarius — 2.1° of net progress: 4.9° forward, 2.8° given back. The loop retraces 2.78° in 160 days, from 4°22′ Aquarius on May 7 back to 1°35′ Aquarius on Oct 14. Fastest day: Jan 2, 0.04° forward; fastest backward: Jul 19, 0.03°. Counting the shadows, 365 days of 1999 sit inside a retrograde window.
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Exact times
Neptune retrograde 1999: exact times in your city
Neptune turned retrograde at 12:51 AM UTC on May 7, 1999 at 4°22′ Aquarius — 8:51 PM on May 6 in Santiago, 8:51 PM on May 6 in New York, 1:51 AM in London and 9:51 AM in Tokyo.
City
Turns retrograde
Turns direct
UTC
Fri, May 7 · 4°22′ Aquarius
Thu, Oct 14 · 1°35′ Aquarius
Honolulu United States
2:51 PM Thu, May 6 · UTC−10
3:35 PM Wed, Oct 13 · UTC−10
Anchorage United States
4:51 PM Thu, May 6 · UTC−8
5:35 PM Wed, Oct 13 · UTC−8
Los Angeles United States
5:51 PM Thu, May 6 · UTC−7
6:35 PM Wed, Oct 13 · UTC−7
Phoenix United States
5:51 PM Thu, May 6 · UTC−7
6:35 PM Wed, Oct 13 · UTC−7
Denver United States
6:51 PM Thu, May 6 · UTC−6
7:35 PM Wed, Oct 13 · UTC−6
Chicago United States
7:51 PM Thu, May 6 · UTC−5
8:35 PM Wed, Oct 13 · UTC−5
Mexico City Mexico
7:51 PM Thu, May 6 · UTC−5
8:35 PM Wed, Oct 13 · UTC−5
New York United States
8:51 PM Thu, May 6 · UTC−4
9:35 PM Wed, Oct 13 · UTC−4
Toronto Canada
8:51 PM Thu, May 6 · UTC−4
9:35 PM Wed, Oct 13 · UTC−4
Bogotá Colombia
7:51 PM Thu, May 6 · UTC−5
8:35 PM Wed, Oct 13 · UTC−5
Lima Peru
7:51 PM Thu, May 6 · UTC−5
8:35 PM Wed, Oct 13 · UTC−5
Caracas Venezuela
8:51 PM Thu, May 6 · UTC−4
9:35 PM Wed, Oct 13 · UTC−4
Santiago Chile
8:51 PM Thu, May 6 · UTC−4
10:35 PM Wed, Oct 13 · UTC−3
Buenos Aires Argentina
9:51 PM Thu, May 6 · UTC−3
10:35 PM Wed, Oct 13 · UTC−3
São Paulo Brazil
9:51 PM Thu, May 6 · UTC−3
11:35 PM Wed, Oct 13 · UTC−2
Reykjavík Iceland
12:51 AM Fri, May 7 · UTC
1:35 AM Thu, Oct 14 · UTC
London United Kingdom
1:51 AM Fri, May 7 · UTC+1
2:35 AM Thu, Oct 14 · UTC+1
Lagos Nigeria
1:51 AM Fri, May 7 · UTC+1
2:35 AM Thu, Oct 14 · UTC+1
Paris France
2:51 AM Fri, May 7 · UTC+2
3:35 AM Thu, Oct 14 · UTC+2
Berlin Germany
2:51 AM Fri, May 7 · UTC+2
3:35 AM Thu, Oct 14 · UTC+2
Johannesburg South Africa
2:51 AM Fri, May 7 · UTC+2
3:35 AM Thu, Oct 14 · UTC+2
Cairo Egypt
3:51 AM Fri, May 7 · UTC+3
3:35 AM Thu, Oct 14 · UTC+2
Athens Greece
3:51 AM Fri, May 7 · UTC+3
4:35 AM Thu, Oct 14 · UTC+3
Istanbul Turkey
3:51 AM Fri, May 7 · UTC+3
4:35 AM Thu, Oct 14 · UTC+3
Moscow Russia
4:51 AM Fri, May 7 · UTC+4
5:35 AM Thu, Oct 14 · UTC+4
Nairobi Kenya
3:51 AM Fri, May 7 · UTC+3
4:35 AM Thu, Oct 14 · UTC+3
Tehran Iran
5:21 AM Fri, May 7 · UTC+4:30
5:05 AM Thu, Oct 14 · UTC+3:30
Dubai United Arab Emirates
4:51 AM Fri, May 7 · UTC+4
5:35 AM Thu, Oct 14 · UTC+4
Karachi Pakistan
5:51 AM Fri, May 7 · UTC+5
6:35 AM Thu, Oct 14 · UTC+5
New Delhi India
6:21 AM Fri, May 7 · UTC+5:30
7:05 AM Thu, Oct 14 · UTC+5:30
Kathmandu Nepal
6:36 AM Fri, May 7 · UTC+5:45
7:20 AM Thu, Oct 14 · UTC+5:45
Dhaka Bangladesh
6:51 AM Fri, May 7 · UTC+6
7:35 AM Thu, Oct 14 · UTC+6
Bangkok Thailand
7:51 AM Fri, May 7 · UTC+7
8:35 AM Thu, Oct 14 · UTC+7
Jakarta Indonesia
7:51 AM Fri, May 7 · UTC+7
8:35 AM Thu, Oct 14 · UTC+7
Singapore
8:51 AM Fri, May 7 · UTC+8
9:35 AM Thu, Oct 14 · UTC+8
Beijing China
8:51 AM Fri, May 7 · UTC+8
9:35 AM Thu, Oct 14 · UTC+8
Manila Philippines
8:51 AM Fri, May 7 · UTC+8
9:35 AM Thu, Oct 14 · UTC+8
Perth Australia
8:51 AM Fri, May 7 · UTC+8
9:35 AM Thu, Oct 14 · UTC+8
Seoul South Korea
9:51 AM Fri, May 7 · UTC+9
10:35 AM Thu, Oct 14 · UTC+9
Tokyo Japan
9:51 AM Fri, May 7 · UTC+9
10:35 AM Thu, Oct 14 · UTC+9
Adelaide Australia
10:21 AM Fri, May 7 · UTC+9:30
11:05 AM Thu, Oct 14 · UTC+9:30
Brisbane Australia
10:51 AM Fri, May 7 · UTC+10
11:35 AM Thu, Oct 14 · UTC+10
Sydney Australia
10:51 AM Fri, May 7 · UTC+10
11:35 AM Thu, Oct 14 · UTC+10
Auckland New Zealand
12:51 PM Fri, May 7 · UTC+12
2:35 PM Thu, Oct 14 · UTC+13
Stations from the NASA JPL DE440 ephemeris. Swiss Ephemeris agrees on every Neptune station 1900–2050: median under a minute, largest 1.8 minutes. Near a station Neptune barely moves, so almanacs differ by minutes. Local times: IANA time zones, to the minute.
160 days · retreats 2.78°
May 7 → October 14, 1999 in Aquarius
Stations retrograde
May 7, 1999, 12:51 AM UTC at
4°22′ Aquarius
Stations direct
Oct 14, 1999, 1:35 AM UTC at
1°35′ Aquarius
Shadow opens
Jan 15, 1999, 6:52 AM UTC
(112 days before)
Shadow closes
Feb 1, 2000, 10:51 PM UTC
(111 days after)
Full window including shadows383 days
It begins in Taurus season and ends in
Libra season.
Also retrograde at the same time
Mars
in Scorpio —
May 7 to Jun 4, 1999 (28 days of overlap)
Pluto
in Sagittarius —
May 7 to Aug 19, 1999 (104 days of overlap)
Uranus
in Aquarius —
May 21 to Oct 14, 1999 (145 days of overlap)
Mercury
in Leo —
Jul 12 to Aug 6, 1999 (24 days of overlap)
Venus
in Virgo —
Jul 30 to Sep 11, 1999 (43 days of overlap)
Jupiter
in Taurus —
Aug 25 to Oct 14, 1999 (50 days of overlap)
Saturn
in Taurus —
Aug 30 to Oct 14, 1999 (45 days of overlap)
Both dates are computed from the planet’s apparent motion, not taken from a
table. A retrograde begins the moment its daily movement against the stars turns
negative, and that moment is findable to the hour.
Computed for 1999
Neptune through the zodiac in 1999
Every sign Neptune occupies during 1999, with the dates it enters and leaves. A sign that
appears twice means the planet backed into the previous sign during a retrograde and crossed again.
AstroHot. “Neptune Retrograde 1999 Dates: May 7 – Oct 14.” Accessed October 31, 2026. https://astrohot.com/retrograde/neptune/1999/
For Wikipedia{{cite web |title=Neptune Retrograde 1999 Dates: May 7 – Oct 14 |url=https://astrohot.com/retrograde/neptune/1999/ |website=AstroHot |access-date=2026-10-31}}
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